During restoration of the historic Carlyle House in Alexandria, workers discovered the mummified body of a cat sealed inside the foundation, an old British custom thought to bring good luck. But that wasn’t the only unusual thing visitors noticed about the house. Eyewitnesses claim something otherworldly has survived with it. Tourists snap anomalous photos in the evening, and report feeling their clothes tugged or a disembodied hand on their shoulder. Whether or not the Carlyle House and its environs is truly haunted is up for debate, but it is a mandatory stop on any local ghost tour.