Nightmare Manor Nightmare Manor is the longest most terrifying haunt in Maryland. This 45-minute trail features a walk through a real 200-year-old mansion. Last year paranormal investigators came to the mansion and used an array of equipment to confirm what the farm’s tenants have known all along—the mansion is actually haunted! http://www.nightmare-manor.com From: Haunted Attraction Directory/ USA (All 50 States)/Maryland
