93. Come early to see Tian Tian and Mei Xiang--the giant pandas--and all the other animals at the Smithsonian National Zoological Park; (202) 673-4800.
94. Marvel at the museums on the Mall--from the Smithsonian's National Museum of Natural History (don't miss the Hope Diamond) to the National Gallery of Art; (202) 789-7000.
95. Brush up on your Bard at the Folger Shakespeare Library; (202) 544-7077.
96. Stage a visit to Ford's Theatre, and see the box where President Abraham Lincoln was fatally shot; (202) 426-6924.
97. Find a cure for what ails you at the National Museum of Health and Medicine at Walter Reed Army Medical Center; (202) 782-2200.