Charlston is a small tourist town on the eastern coast of the United States of America, near New York City. It offers all kinds of shops, entertainments and activities for people staying in its eponymous Charlston Hotel, and is generally considered a great place to get away from it all and relax. Just ask Simpson!
Several miles down the coast from the hotel, you'll find the Charlston Power Plant, an experimental government facility generating electricity using wave power. The Return of the Transformers