The National Postal Museum is divided into galleries that explore America's postal history from colonial times to the present. Visitors learn how mail has been transported and the wondrous diversity of postage stamps.

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Exhibit Highlights

Postal Inspector looking through binoculars

Behind the Badge: The U.S. Postal Inspection Service

Postal inspectors work to keep the mail safe.

the text William H. Gross Stamp Gallery in red next to several colorful stamps

The William H. Gross Stamp Gallery

A New Home for a National Treasure.

photo of postal sorting machinery

Systems at Work

You drop a letter in a mailbox and then what happens?

a large group of soldiers

Mail Call

Explore the history of the military postal system through Mail Call.

Pony Express: Romance vs. Reality

This exhibition examines fictional and actual stories from the history of the world's best known mail carriers.


Alphabetilately presents an alphabet of philately through 26 topics, in which each letter stands for some aspect of philately.

Airmail in America

Learn about the role the postal system played in the creation of America's commercial aviation industry.