Marengo Cave was discovered by a 15 year old girl named Blanche and her 11 year old brother Orris in 1883. Ever since, it has been open to the public for tours, and is now even considered a U.S. National Landmark. Throughout history, large caverns in the cave system have hosted fraternal order meetings, church services, movie sets, theater productions, and weddings. The cave maintains a year round temperature of 52 degrees Fahrenheit and boasts many different cave formations, including flow stone, Rimstone Dams, Cave Popcorn, Stalactites, and Draperies.
Marengo Cave is located in Marengo Indiana, which is an hour and forty minute drive from Columbus, and a two and a half hour drive from Indianapolis. The cave offers a forty minute walking tour, a sixty minute walking tour, and canoeing. Details and pricing can be found at the website: http://www.marengocave.com/