The U.S. Army Museum of Hawaiʻi is housed inside Battery Randolph, a former coastal artillery battery, located at Fort DeRussy Military Reservation. The battery was transformed into a museum in 1976. The museum's collection contains some World War II armor pieces, an AH-1 Cobra helicopter, and small arms indoors, as well as the battery itself. The battery's main guns were scrapped prior to the inception of the museum.