Smithsonian Museums

Most Smithsonian museums on the Mall do not charge admission. The limit is time and energy: each major building can fill half a day. Security lines form at opening, especially for Air and Space and Natural History.

Location Entry Time needed
National Mall, Washington, D.C. Free (timed entry some venues) 1 to 3 museums per day
Smithsonian

Highlights not to miss

Air and Space and Natural History

Air and Space and Natural History

The two busiest Mall museums; Air and Space may use timed entry—reserve free tickets when required.

American History and the castles

American History and the castles

The Star-Spangled Banner and presidential artefacts; the Smithsonian Castle visitor centre orients first-timers.

Off-Mall gems

Off-Mall gems

Portrait Gallery / American Art in Penn Quarter, Zoo in Woodley Park, and Udvar-Hazy near Dulles for the big hangars.

Admission is free, but some museums require free timed-entry passes. Hours vary by building and season. Confirm on si.edu before you queue.

Why visit Smithsonian Museums

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Pick two buildings, not ten

A focused day beats a blur of lobbies. Leave buffer for security and the Mall walk between wings.

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Start at opening

Lines and school groups build by late morning. Air and Space and Natural History feel it first.

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Use the Castle as a hub

Maps, cafes and a central location between the main Mall museums.

Getting to Smithsonian Museums

Smithsonian museums along the National Mall, Washington, D.C.
  • Most visitor museums sit between 4th and 14th Streets on the Mall, south of Constitution or north of Independence Avenue.
  • Metro: Smithsonian (Blue/Orange/Silver) for the central Mall; Federal Center SW, L'Enfant Plaza and Archives serve nearby buildings.
  • Security screening is required; large bags slow you down.
  • This is an independent visitor guide, not a ticket seller.

FAQ

Are Smithsonian museums really free?

Yes for standard entry to the Mall museums. Special tickets or IMAX may cost extra; timed-entry passes are still free when required.

Do I need to reserve?

Often for Air and Space and sometimes others during peak seasons. Check each museum's page.

How many can I see in a day?

Two carefully, three if you are selective. Four is a rush.

Is the zoo included?

The National Zoo is Smithsonian and free, but it is not on the Mall; plan a separate half day.

About the Smithsonian

The Smithsonian Institution was founded in 1846 with a bequest from James Smithson. It is the world's largest museum and research complex, largely funded by the U.S. government and private support.

Mall museums are among Washington's top visitor draws. Policies on timed entry, hours and special exhibitions are set per museum.

This page is an independent guide for visitors. It is not affiliated with the Smithsonian Institution.

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