4. St. Paul’s Chapel
St. Paul’s Chapel: The cemetery is the resting place of actor George Frederick Cook’s headless body. Cook donated his head to science upon his death in 1811, and visitors report seeing a headless man walking around at night. His skull was reportedly used as a prop in productions of Hamlet in the theater across the street. Nearby was PT Barnum’s American Museum, which burned down in 1865 with dozens of exotic animals inside.