McKamey Manor, in San Diego, California, is also the world's most exclusive haunted house, with 24,000 people on its waiting list. No one has ever completed the ordeal in its entirety, with marines and adrenaline junkies failing the to make it through the mansion, which has reduced dozens of grown men to tears.
Guests at McKamey Manor are drenched in fake blood as part of the interactive experience described as the scariest in the world
