Sonny Bono Memorial Park is a park in Northwest Washington, D.C., at the intersection of New Hampshire Avenue, 20th Street, and O Street near Dupont Circle. It is named for Sonny Bono. The park was established in 1998 after Sonny Bono's death by Bono family friend Geary Simon, a local real estate developer. He approached the D.C. Department of Parks and Recreation's Park Partners program and paid $25,000 of his own money to revitalize an unused 800-square-foot (74 m²) triangle of grass. His improvements included installing an underground sprinkler system, planting new Kentucky bluegrass and a Japanese maple, as well as benches and a wrought-iron fence.