A commercial area centered on Washington Street is Claremont's primary commercial district. An Italian Renaissance-styled City Hall building, which houses the historic Claremont Opera House, was built in 1897 and designed by architect Charles A. Rich. City Hall faces Broad Street Park, a rotary-style town square. This square connects Washington Street, Broad Street, and Main Street, which branch into different portions of the city. Broad Street Park contains war monuments to World War I, World War II, Korea and Vietnam, and Freedom Garden Memorial dedicated to the victims and families of September 11. Included are two Civil War cannon and the centrally-located Soldier's Monument, designed by Martin Milmore and dating to 1890. The park is also home to a historic bandstand, originally built in a Victorian style in 1890 and redesigned in 1922 in a Classical Revival style, which primarily serves as performance space for the Claremont American Band, a community band dating to about 1880. Parallel to Broad Street lies Pleasant Street, home to a downtown business district, which was the city's primary commercial zone until the development of the Washington Street district.