Congress Hall is the historic building on the west side of Independence Hall that served as the meeting place of the United States Congress from 1790 to 1800, during Philadelphia’s decade as the nation’s capital. Completed in 1789 as the Philadelphia County Courthouse, the building was adapted for federal use when the new government under the Constitution relocated from New York. The House of Representatives met in the large chamber on the first floor, while the Senate convened in the more ornate second‑floor chamber, whose furnishings and decorative details reflected the upper chamber’s formality and prestige.
During its tenure as the seat of Congress, the building witnessed several defining moments in early American history, including the inaugurations of George Washington (his second term) and John Adams, the ratification of the Bill of Rights, and debates that shaped the nation’s financial system, foreign policy, and territorial expansion. After the federal government moved to Washington, D.C., in 1800, Congress Hall returned to local civic use before becoming part of Independence National Historical Park. Today it is preserved as a museum site, offering visitors a direct connection to the formative years of the American republic and the chambers where the country’s early legislative foundations were laid.