The East Martello Fort, complete with an eight-foot thick granite wall, was built during the Civil War Era to withstand any bombardment but was never completed and never saw any hostile action. The casemates, citadel and courtyard today make up the museum. Among its collection are Key West artifacts, historical records and military memorabilia. Also on display are the state’s largest collections of painted wood carvings and drawings by Mario Sanchez. In addition, the fort is also home to Robert the Doll, the most famous haunted plaything in the world.