Cooke Castle on Gibraltar Island was constructed in 1864 and placed on the National Register of Historic Landmarks in 1966. It stands as a testament to Put-in-Bay history, but it is less celebrated than Perry’s Monument. The Ohio State University owns the castle as part of its Ohio Sea Grant program and Stone Laboratory research facility.
Gibraltar Island, open to tours during the summer months, is a must-visit attraction when on or around the Bass Islands of Lake Erie. Click on the link below for a PDF which details its significance.