Things to do
Get off at the Smithsonian Metro stop and head down Independence Ave toward the Lincoln Memorial. Then return on Constitution Ave toward the Capitol. The end to end walk takes about 45 minutes one way.
Don't miss Constitution Gardens on your walk near the reflecting pool. This spot is often overlooked by tourists but you can see the signatures of the Founding Fathers carved in stone.
Take a break in the Sculpture Garden outside the National Gallery of Art with snacks from the Pavilion Café. Open 11 am to 3 pm.
Visit the Museum of Natural History, one of the most recognized Smithsonian museums. Don't miss gems and fossils of dinosaurs and ocean creatures.
If you still have time, check out the Hirshhorn Museum or the National Gallery of Art - East Building. Both are free and feature fun contemporary art pieces.