The largest collection of American historical artifacts in the world is found here at the National Museum of American History, just beside the Washington Monument. Devoted to illustrating major events in American social and cultural history through related objects, you'll find much to please a history buff. The display of First Ladies' Inaugural ball gowns-from Martha Washington to Michelle Obama-is one of the most popular. Pop culture enthusiasts can visit Dorothy's ruby slippers, Mr. Rogers' cardigan, and Jim Henson's Kermit the Frog puppet.

americanhistory.si.edu