Museums' opening draws large crowds to Chinatown.
The neighborhood surrounding the two museums has changed dramatically since 2000.
A "spirit of cooperation" shines at revamped Smithsonian museums.
A $298-million-dollar renovation has brought the Patent Office Building back to its former glory.
Michael O'Sullivan reviews 13 inaugural exhibits.
Critic offers tips for aspiring portraitists in light of competition's finalists.
Explore with an interactive graphic.