Museum

National Postal Museum

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The National Postal Museum, part of the Smithsonian, is a treasure trove for stamp enthusiasts and history buffs alike. Housed in the historic City Post Office building near Union Station, the museum traces the evolution of mail delivery from horse-drawn wagons to airmail. Highlights include the world's largest stamp collection, a restored 1930s railway mail car, and interactive displays where visitors can sort mail or design a stamp. It offers a unique look at how communication has shaped America.

Don't miss

  • View the world's largest stamp collection, including rare issues like the Inverted Jenny
  • Climb aboard a restored 1930s railway mail car and see how mail was sorted on trains
  • Try sorting mail at an interactive station and learn about the Pony Express

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