13. Spitbank Fort Hotel, United Kingdom
The Spitbank Fort is a small luxury hotel located in a Victorian-era sea fort off the coast of Portsmouth, England. It is one of the largest in the Solent, or the strait that separates the Isle of Wight from the mainland of England.
The fort has nine rooms and three restaurants and bars, along with all of the other top-class amenities. Some of the fort’s original features have been retained, such as the brick walls, the fortress windows and a few old cannons.