Located in the brick building across the street from the Bunker Hill Monument, this 2007 museum is dedicated to the legacy of Charlestown and its historic Revolutionary War battle. Exhibitions outline the construction of the monument and artifacts from it, including an original diorama and a cyclorama of the battle. Staffed by National Park Service Rangers. Free admission. Open daily 9 am-5 pm (daily 1-5 pm Nov. 28-April 15).