The Old Exchange and Provost Dungeon is located at 122 East Bay St in Charleston, South Carolina. It was built in 1771. It served as a commercial exchange and custom house. It is an example of Georgian architecture with a grand ball room, observation deck and museum.
It served as a military prison during the Revolutionary War; A pow camp during the Civil War.
A provost dungeon was in the basement for pows and political prisoners.

