10. The Willard HotelYear Built: 1847Location: 1401 Pennsylvania Avenue NWArea: over 22,000 sq.ftCurrent Usage: Hotel
9. U.S. Treasury Building
Year Built: 1836
Location: 1500 Pennsylvania Avenue NW
Area: 765 sq.m
Current Usage: Government Office
8. Decatur House
Year Built: 1818
Location: 748 Jackson Pl NW
Area: 0.40 hectares
Current Usage: House Museum
7. Tudor Place
Year Built: 1816
Location: 1644 31st St NW
Area: 2.23 hectares
Current Usage: Garden, Museum, Events Place
6. The Octagon Museum
Year Built: 1801
Location: 1799 New York Ave NW
Area: Unknown
Current Usage: Museum
5. Sewall-Belmont House
Year Built: 1800
Location: 144 Constitution Ave NE 20002
Area: 3642 sq.m
Current Usage: Events Place, House, Museum
4. Dumbarton House
Year Built: 1799
Location: 2715 Q St NW 20007
Area: 2428 sq.m
Current Usage: National Headquarters of the NSCDA
3. U.S. Capitol
Year Built: 1793
Location: First St SE
Area: 1.62 hectares
Current Usage: Government Office
2. The White House
Year Built: 1792
Location: 1600 Pennsylvania Avenue NW
Area: 7.2 hectares
Current Usage: US Presidents’ Official Residence and Workplace
1. Old Stone House
Year Built: 1765
Location: 3051 M St NW
Area: 0.16 hectares
Current Usage: Educational center