Coit Tower is a 210-foot tower in the Telegraph Hill neighborhood of San Francisco, California, overlooking the city and San Francisco Bay. The tower, in the city's Pioneer Park, was built between 1932 and 1933 using Lillie Hitchcock Coit's bequest to beautify the city of San Francisco. It was added to the National Register of Historic Places on January 29, 2008.The Art Deco tower, built of unpainted reinforced concrete, was designed by architects Arthur Brown Jr. and Henry Temple Howard.