Of course, the White House (see below) is only one of many architectural landmarks in Washington DC. Dozens of remarkable buildings illustrate the ways architecture was used to express democratic ideals in the fledgling United States.

From our Guide to Washington DC, here are the 25 oldest and most significant historic landmarks in the nation's capital: 25 Historic Buildings in Washington, DC >>

^{Photo: The Capitol Building in Washington DC. ClipArt.com}