Halloween is a great time to visit your local haunted locations. I am sure your neighborhood ghost will appreciate it. In fact, ghosts might moan just to dramatically make it known they are bored, just like your kids do.
National Historic Landmarks are some of the best places to find some ghosties. I was actually tipped off to this fact by the Maitland Art Center near Orlando, Florida. They are the latest haunted location to be given the National Historic Landmark designation.