This is the birthplace and home of Charles Carroll of Carrollton, the only Catholic to sign the Declaration of Independence. With sections built in 4 centuries, it sits on high ground overlooking Spa Creek, a block from City Dock. Visitors can tour the house, which is still undergoing restoration. Some features are original, including the walnut staircase, floors, and woodwork. Also take a look at the waterfront gardens and the 18th-century wine cellar. There is an elevator.