Robber's Cave in Lincoln, Nebraska is reportedly haunted, with rumors of Native American chants, screams, cries, laughter, and voices being heard, possibly due to its history as a hideout for outlaws like Jesse James and a stop on the Underground Railroad. The cave is a hand-dug, 5,000-square-foot sandstone cavern expanded by German immigrants in the late 1800s. Visitors and witnesses have reported hearing Native American chants and drums, screams, cries, laughter, and disembodied voices. Legends claim that notorious outlaws such as Jesse James and other criminals used the cave as a hideout. There are also reports of the cave serving as a stop or route on the Underground Railroad. The cave is said to have tunnels connecting to other areas, with some accounts of convicts and patients ending up in the cave through these passages. Some sources mention deaths occurring within the cave or its tunnels, which may contribute to its haunted reputation.