Sands Hills Lighthouse is the largest and last manned lighthouse built on the Great Lakes. Constructed in 1917, it was active until 1939. After it was automated, the grounds were used by the Coast Guard as a World War II training site for about 200 men. The property then sat vacant until a Government Auction in 1959. Today you can stay a night at this Bed and Breakfast or take a guided tour. The lighthouse is on the National Registry of Historic Places.