Did you know that many of Americas most beloved cities are also haunted? To learn more about these destinations dark sides, consider signing up for a ghost tour. These frightening activities, which typically hover around the two-hour mark, offer a thrilling combination of history, mystery and entertainment in one evening. Knowledgeable and engaging guides will be by your side as you explore many ahaunted siteand perhaps even acemetery or two, and, if youre lucky (or unlucky, depending on how you look at it), you may even spot a ghost! The list below includes fascinatingand frighteningexcursions in some of the countrys most populous cities, such as San Francisco, New York, Chicago, and Los Angeles, along with smaller but equally spooky locales like Salem and Savannah.