Old Exchange & Provost Dungeon

What the building is

In 1767 South Carolina's colonial assembly voted to build a new Exchange and Custom House at the foot of Broad Street, on the spot where the Half-Moon Battery, finished around 1701, had guarded the formal sea entrance to the walled town. William Rigby Naylor drew the plans, the brothers John and Peter Horlbeck did the masonry, and the building opened in 1771 as one of the largest public buildings in the American colonies. Ships' cargo cleared customs on the main floor; the Great Hall upstairs held the town's grandest gatherings; the cellar stored goods.

A surprising share of the country's founding paperwork got handled inside. South Carolina elected its delegates to the First Continental Congress here in 1774. When tea ships reached Charleston in 1773 and 1774, the cargo was confiscated and locked in this cellar instead of sold, Charleston's drier answer to Boston's harbor party. On August 5, 1776, the Declaration of Independence was read aloud to a crowd outside the building (the day's first Charleston reading happened up Broad Street at the State House, and the procession then moved here). In May 1788 the state's ratification convention met in the Great Hall and made South Carolina the eighth state to approve the U.S. Constitution; this is one of only three surviving buildings where a state ratified the document. And in May 1791, George Washington spent a week in Charleston and was entertained in that same Great Hall, including a concert and a fancy-dress ball.

The record is not all founding-era glory. From the Revolution until the Civil War, the Exchange was Charleston's most common site for public slave auctions, held at and just north of the building. The museum tells that part of the story plainly rather than leaving it out.

The pirates came first, and guides often blur this

You will hear that pirates were chained in the Provost Dungeon. They were not, and the arithmetic settles it: the building went up in 1771, and Charleston's pirate episode came 53 years earlier. In the fall of 1718, Stede Bonnet, the so-called Gentleman Pirate, was captured with his crew near Cape Fear and brought to Charleston. The town had no proper jail, so the crew was locked in the Court of Guard, the watch house that stood on this exact site beside the Half-Moon Battery. Bonnet himself, a gentleman by birth, was held under guard at the marshal's house instead. Judge Nicholas Trott tried the pirates that autumn, the convicted were hanged at White Point at the tip of the peninsula, and Bonnet followed them to the gallows on December 10, 1718.

So the pirate connection belongs to the ground, not the cellar. When a docent in the dungeon talks about pirates, the honest version is about the guard house the Exchange replaced. Still a good story. Just not a story about the room you are standing in.

The Provost: 1780 to 1782

Charleston fell to the British in May 1780 after a six-week siege, and the occupying army took the Exchange for itself. The cellar built for cargo became the Provost, the military prison that gives the dungeon its name. Continental prisoners of war, civilians the British considered disloyal, enslaved people, and even British soldiers under punishment were confined together in the low brick vaults, and the conditions in a damp, crowded cellar were as bad as you would guess.

Research in 2012 put names to 120 of the people held here. They include Christopher Gadsden, the lieutenant governor whose rattlesnake flag still gets flown, and three signers of the Declaration of Independence: Edward Rutledge, Thomas Heyward Jr., and Arthur Middleton, all later shipped to St. Augustine as prisoners. The most remembered is Colonel Isaac Hayne, a militia officer the British hanged without trial on August 4, 1781. His execution outraged the Lowcountry and hardened the fight in the war's last year. The British left Charleston in December 1782, and the cellar went back to holding barrels.

What a visit is like

Buy tickets at the door; nothing needs booking ahead. The top two floors are self-guided, with exhibits on the Revolution, the Constitution, and Washington's visit, plus the Great Hall itself. The dungeon is guided only: tours leave every half hour starting at 10 AM and run about 25 minutes, led by a docent, often in eighteenth-century dress. Down in the vaults, costumed mannequins stage prison scenes. The staging is old-school and reviews split on it; some visitors find it charming, others a little hokey. The history the docents deliver over it is solid.

The best physical artifact is in the dungeon's floor and wall: a stretch of the Half-Moon Battery, excavated beneath the building in 1965. It is the only standing portion of the original Charles Town city wall open to the public, and you see it exactly where it was built. An elevator reaches all three floors, and most visitors are done in 45 minutes to an hour. A discounted combo ticket with the Old Slave Mart Museum, a five-minute walk away on Chalmers Street, is sold on site.

Is it worth it?

Yes, if the Revolution interests you at all. Sixteen dollars for an hour that includes a live guided tour is fair by Charleston prices, and no other building downtown puts this much documented founding history over a prison cellar and a surviving piece of the city wall. It is the strongest Revolutionary War stop on the peninsula, and the dungeon tour gives kids in the middle grades something they will actually remember.

Skip it if you are expecting a haunted attraction. In daylight the dungeon is a lit museum cellar with mannequins in it, and nobody is trying to frighten you. Skip it too if a fixed 25-minute guided pace annoys you, or if your kids are too young to sit through one. And if your Charleston time is down to a single afternoon, the streets south of Broad cost nothing and start right outside the door, so the Exchange competes with free.

Ghost stories, told as ghost stories

The dungeon earns its place on Charleston's ghost circuit. The lore: moans and cries from the vaults, chains that sway with nobody near them, cold spots, orbs in photographs, the occasional shove from empty air. None of it appears in any historical record, and the daytime museum plays it straight. What the record does support is misery, men held in the dark under their own city, and at least one of them, Isaac Hayne, walked out only to be hanged.

If you want the ghost framing, it belongs to the evening. The 90-minute ghost and dungeon walking tour (rated 4.2 from 273 reviews) walks the haunted historic district after dark and builds its route around the Old Exchange and Provost Dungeon, which is how most visitors see the cellar at night. Confirm with the operator whether your date includes interior access before you book. For the rest of the city's haunted résumé, see our guide to Charleston's haunted places.

Getting there and what's nearby

The Old Exchange anchors the corner of East Bay and Broad Streets, at the southeast corner of the French Quarter. There is no visitor lot; the closest city garages are East Bay/Prioleau at 25 Prioleau Street, about a block north, and Cumberland Street at 82 Cumberland, and if you are already exploring downtown on foot it is an easy add to any route south of Market Street.

A two-minute walk south on East Bay Street, between Elliott and Tradd, brings you to the pastel houses of Rainbow Row, and the Battery is a few minutes beyond them. Waterfront Park is a short walk north along the harbor. Broad Street's law offices and church spires run west toward the Four Corners of Law. For how the Exchange fits into a full day downtown, start with our things to do in Charleston guide.