About Us

We're hosting special events during the winter months!
The Museum is now closed to tours but will host special events in January, February, and March, with tours resuming in April. See our Calendar of Events for event details.


Hammond Castle Museum is a unique treasure on the coast of Gloucester, Massachusetts. It was constructed between 1926 and 1929, by inventor John Hays Hammond, Jr. to serve as his residence. Its architectural style is that of a medieval castle and was custom-built to encompass his private collection of artifacts spanning from ancient Rome through the Renaissance. Visitors are welcome to explore the many rooms of the Museum with its medieval architecture and artifacts, as well as enjoy the beauty of the grounds and view of the Atlantic shoreline. In addition, the Museum offers a number of educational programs and prearranged tour opportunities for school and tour groups.