Time Out says
Join author and 25-year paranormal researcher veteran Ursula Bielski (yeah, a ghost hunter named Ursula, so cool) and her staff on a darkly historic two-hour bus tour through Chicago’s bloody past. Visit Chicago’s “most actively haunted sites,” like the death site of Chicago's most famous ghost, "Resurrection Mary," and relive events like the St. Valentine's Day Massacre. This tour is not recommended for children under 8. See the schedule for up to date availability.