The Slippery Noodle Inn in Indianapolis is considered haunted due to its long history as a bar and roadhouse, with reported paranormal activity including the presence of at least 13 different spirits, such as a cowboy, a prostitute, slaves, and the "Shadow Man". Guests and staff have described unusual occurrences like open wine bottles in the basement and disembodied activity on the second floor, which are often tied to the building's past as a gangster hangout and a potential stop on the Underground Railroad. Guests and staff report seeing at least 13 different spirits, including a cowboy, slaves, a prostitute, a caretaker, and a shadowy figure known as the "Shadow Man". Visitors have reported unexplained events, such as wine bottles found open in the basement and odd activity in the second-floor rooms. The building's basement is believed to have been a stop on the Underground Railroad, and some believe these past residents contribute to the hauntings. The Slippery Noodle was known as a spot for gangsters, with legends of a gangster stabbing a man over a girl. The establishment also served as a roadhouse, and its basement may have been used to house people traveling to freedom.