The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
The Maples, 630 South Carolina Avenue Southeast, Washington, District ...
Significance: Maple Square: When George Washington with his architect-engineer, Major l'Enfant, was planning the capitol of the young republic, the site of "Maple Square was occupied by a pioneer log cabin. At... More
Lyles House, Livingston Road, Fort Washington, Prince George's County,...
Significance: These are the remains of an important example of early 18th-century Maryland architecture. Although in ruinous condition, much can be learned of the construction and architecture of this period f... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More
Old Stone House, 3051 M Street Northwest, Washington, District of Colu...
Significance: One of the oldest buildings in the District of Columbia. Unprocessed Field note material exists for this structure: FN-1 Survey number: HABS DC-10-2 Building/structure dates: ca. 1767 Initial ... More
Harmony Hall, 10500 Livingstone Road (10511 Livingstone Road), Friendl...
City/Vicinity has been changed twice. Original location was Broad Creek, the second location was Friendly vicinity, & the third location is Fort Washington, all in Prince George's County, Maryland. Significanc... More