The Nightmares Fear Factory is a haunted house attraction in Niagara Falls, Ontario, Canada. It is the oldest haunted house in North America in continuous operation. They are known for posting images of their visitors just as they have been shocked to a Flickr account. The attraction is allegedly built in an old coffin factory. The owner of the factory before it was turned into a haunted house, Abraham Mortimer, was killed when a stack of coffins collapsed upon him..... Wikipedia