Fodor's Expert Review Fort Knox Historic Site

Next to the Penobscot Narrows Bridge is Fort Knox, Maine's largest historic fort. It was built of granite on the west bank of the Penobscot River between 1844 and 1869 when, despite a treaty with Britain settling boundary disputes, invasion was still a concern—after all, the British controlled this region during both the Revolutionary War and the War of 1812. The fort never saw any real action, but it was used for troop training and as a garrison during the Civil War and the Spanish-American War. Ghost hunters have reported a range of paranormal activities here. Visitors are welcome to explore the many rooms and passageways. Guided tours are given between 11 and 3 when volunteers are available.