McKamey Manor is a haunted house located in Russ McKamey's backyard in San Diego, California. It is known for its violence and cruelty towards its guests, who must sign a waiver to get in. They give the patrons unwanted haircuts, drench them in fake blood, submerge them in water, force them to eat and drink unknown substances, and even go as far as to bind and gag their guests.
They are open year round, there is a waiting list of over 27,000.
References
McKamey Manor Wikipedia(Text) CC BY-SA