Explore and learn about everything from the origins of man and the future of flight to the history of art across multiple continents with more than 150 million objects, works of art and specimens to discover. The Smithsonian’s collection of knowledge centers serve as a treasure chest for visitors and a guide to the most fascinating aspects of our world. And the best part? You won’t have to pay a penny to experience it as admission is free at every Smithsonian museum.

Visitors wishing to see the rooms of the historic Capitol must be on a guided tour. We do not offer self-guided tours.

Reservations are recommended for a tour. Visit the schedule a tour page to select a day/time.

We welcome visitors without reservations. Our staff will put you on the next available tour. If arriving without a reservation, we recommend entry no later than 2:30 p.m.

Discover a new perspective on Washington DC's best-known sights—and enjoy a comfortable way to travel, without the crowds and hassle—on this nighttime open-top bus tour. Prepare to see many of the city's key monuments and memorials lit up after dark, from the White House to the Lincoln Memorial. As you go, the on-board narration will illuminate the city's rich history.

This tour offers the perfect introduction for first-time visitors

Experience unobstructed views from your open-top double-decker bus

Learn insider stories about DC from the recorded or live commentary

Dive into the spooky side of D.C. on a 2.5-hour adventure that's part ghost tour, part pub crawl! Led by costumed guides, roam around the White House, uncover tales of ghosts, presidents, and prohibition, and make pit stops at 2-3 haunted pubs. It's a mile of mystery, history, and drinks (not included) that'll have you spellbound. Must be 21+ with valid ID. Get your tickets for Haunted Washington D.C. Booze and Boos Ghost Walking Tour!

The Steven F. Udvar-Hazy Center displays thousands of aviation and space artifacts, including the Space Shuttle Discovery, a Blackbird SR-71, and a Concorde, in two large hangars.

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On the Potomac River within eyesight of Washington, D.C., Alexandria, VA is nationally recognized for its rich history and beautifully preserved 18th- and 19th-century architecture.