The Fort Hamilton Historic District is located in Brooklyn, New York, and is known for its rich military history. Established in the early 19th century, it features the historic Fort Hamilton, which was built to protect New York Harbor. The district includes several well-preserved buildings and structures that reflect the architectural styles of the time. In addition to the fort, the district encompasses various military-related sites and monuments. It is part of the larger Brooklyn area and is recognized for its significance in American history, particularly during the Civil War and World War II. The district is listed on the National Register of Historic Places.