A "ghost" (some people believe) is the spirit of a dead person who appears to living persons. "To haunt" means to appear in a place in the form of a ghost. If a place were haunted by ghosts (or if people believed the place was haunted by ghosts), such a place would attract tourists! a "tourist attraction" - a place that attracts tourists

Some believe after you die your spirit (soul) may stay near where you died. These spirits are called Ghosts. The place where they are is sometimes called haunted. So places that had a lot of deaths in the past, like battlefields, hospitals, or houses are sometimes turned into destinations for tourists, called "tourist attraction" I hope this helps.