Photos of terrified visitors to the Nightmares Fear Factory in Niagara Falls, Canada, have become an internet sensation after being posted to the attraction's Flickr account. Groups of unsuspecting victims can be seen screaming in fear and clutching on to one another for dear life at the moment in the tour when they are met by a car filled with ghosts. The haunted house is said to stand on the site of a former coffin factory where the previous owner was killed after a stack of caskets fell on him. More at Mail Online.