Waugoshance Lighthouse ~ Not in the sea, but in the middle of Lake Michigan, it was built in 1851 to guide ships through a treacherous area of the Straits of Mackinac, where shipwrecks were common & is completely surrounded by water. When larger vessels started to use the Gray Reef passage it led to its decommission in 1912. It was to be used as targets for the artillery of the U.S. Navy during World War II. However, after more than 160 years it still remains standing.
The Hudson-Athens Lighthouse, built in 1873-74, located in the middle of the Hudson River between Hudson, NY and Athens, NY. Unlike most other lighthouses, this one is actually a complete house, containing bedrooms, a kitchen, a dining room and a sitting room. NY