Admission to all Smithsonian museums in Washington, D.C., is free. The museums are open seven days a week. (The Smithsonian is closed on Christmas Day.) Hours are from 10 a.m. to 5:30 p.m. daily.

How much do Smithsonian tickets cost?

There is no admission fee. over a year ago. 3 Answers What's the fastest entrance to get in?

What is the most expensive thing in the Smithsonian?

The Hope Diamond Necklace

The 45.52-carat deep blue Hope Diamond is estimated to be worth between $250 - $350 million. It was ever so casually mailed to the Smithsonian in a plain brown wrapper via registered mail by donor Harry Winston. It's one of the most visited museum objects in the world.