National Postal Museum

2 Massachusetts Avenue Northeast, DC 20002

Open Daily 10am-5:30pm

Admission is always free!


Experience the amazing history of the United States Postal System with your whole family. The Smithsonian Institution’s National Postal Museum welcomes you into the world of the mail and stamp collecting, and lets you experience how letters travel, who delivers them, and how the postal system has touched the lives of so many people all over the world.


*This museum is the Hidden Gem of Smithsonians and definitely the "easiest" of the Smithsonians with kids! Excellent hands-on exhibits and the largest collection of stamps in the world.