And the nation's favorite buildings are:

From Slate:

Last month, the American Institute of Architects released the results of a national poll that asked the public to name its favorite buildings in the United States. Probably no one but an architect would be interested in exactly who made the cut. Meier and Gehry did (for the Getty Center and Disney Concert Hall, respectively)—although their buildings rank below Michael Graves' cartoonish Dolphin and Swan Hotels in Walt Disney World. Such firebrands as Thom Mayne, Peter Eisenman, and Steven Holl did not. But it is the list as a whole that casts an interesting light on what Americans think of the recent spate of signature buildings. The short answer: not much.

The list is here and six of the top ten sites are in DC.