Washington D.C. (USA)
The twenty closest neighbours in the database:
New York (USA) (327 km), Toronto (Canada) (567 km), Boston (USA) (633 km), Detroit (USA) (636 km), Henry Ford Museum and Greenfield Village (647 km), Ottawa (Canada) (732 km), Montreal (Canada) (788 km), Atlanta (USA) (873 km), The Art Institute of Chicago (957 km), Chicago (USA) (959 km), Milwaukee (USA) (1,022 km), St. Louis (USA) (1,142 km), Orlando (USA) (1,220 km), Miami (USA) (1,488 km), Galveston (USA) (1,952 km), Houston (USA) (1,962 km), Austin (USA) (2,121 km), San Antonio (USA) (2,223 km), Bandera (USA) (2,260 km), San Juan (Puerto Rico) (2,507 km)