The Slippery Noodle Inn is a large blues bar and restaurant with two performance stages in downtown Indianapolis, Indiana. It also has the distinction of being the oldest continuously operating bar in the state of Indiana, having opened in 1850 as the Tremont House. The Inn served as a stop on the Underground Railroad during the American Civil War. During prohibition it was called a restaurant, although beer was still being made in the basement, and later it housed a brothel until 1953.