Post Office

Location: Lower Level

The United States Postal Service® is an independent establishment of the Executive Branch of the United States Government. It operates in a businesslike way. In the more than two centuries since USPS® began, it has grown and changed with America. Discovering the history of the Postal Service is a journey into the history of transportation, economics, industrialization, communications, and government. Today, the Postal Service™ delivers hundreds of millions of messages each day to more than 141 million homes and businesses.