Capital Hauntings (Washington, D.C.)
“No other part of the city claims a more mysterious, macabre history than Lafayette Square, the park north of the White House. The restless ghosts of presidents, a first lady, assassins and military officers roam the hallways of old homes, a church, and even the White House. As the day draws to a close, you’ll creep through the park and adjoining streets past these haunted sites. Your guide will relay the ghost stories associated with each person or place.” (Thanks to Myponine for the suggestion.)