Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, Linnaean House, 2345 Tower Grove Avenue, Sa...
Significance: A well-preserved example of the mid-19th century type of greenhouse and features unusual decorative brickwork. The only remaining one of Shaw's original greenhouses, it is probably the oldest stru... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Sixteenth Street Bridge, Spanning Piney Branch Parkway, Washington, Di...
Significance: This bridge was the first parabolic arch constructed in the United States. Its concrete masonry, faced with sandstone and pebble aggregate, conforms with the model for park crossings established ... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More
Missouri Botanical Garden, 2345 Tower Grove Avenue, Saint Louis, Indep...
Significance: The site of important botanical research since its inception, the Garden was one of the first institutions in the country for horticultural display and education. Just ten years after it was found... More
Connecticut Avenue Bridge, Spans Rock Creek & Potomac Parkway at Conne...
Significance: Designed by prominent engineer George B. Morison, Connecticut Avenue Bridge was described at the time of its construction as the largest concrete arch in the world. This seven-arch span was erect... More