Visitors also enjoy camping, hiking, and sailing.
Cave of the Mounds, between Mount Horeb and Blue Mounds, has hundreds of colorful stone formations in the cavern's 14 rooms. Circus World Museum, in Baraboo, has a large collection of equipment from U.S. circuses. Displays include items used by the Ringling brothers, who started their world-famous circus in Baraboo in 1884. Circus acts perform daily each summer. Door County, on Door Peninsula, is a popular vacation spot.