Aquatic Park Historic District is a National Historic Landmark and building complex located on the San Francisco Bay waterfront within San Francisco Maritime National Historical Park. The district includes a beach, bathhouse, municipal pier, restrooms, concessions stand, stadia, and two speaker towers. The District's San Francisco Maritime Museum building was built as a bathhouse in 1936 by the WPA; in Streamline Moderne style, its interior is decorated with fantastic and colorful murals.