Nestled along Gloucester's scenic coastline, Hammond Castle Museum offers some of the most beautiful views of Gloucester. This medieval-style castle was the brainchild of John Hays Hammond Jr., an eccentric inventor and pioneer in the field of radio control. Built in the 1920s, the castle is a blend of medieval architecture and early 20th-century ingenuity. The castle's stunning ocean views and unique atmosphere make it a memorable destination.