The “Winchester Mystery House” is the house built by the heiress of the Winchester Gun fortune. It was started in 1884 in northern california. She built the house continuously for 38 years with stair wells that go no where, windows with walls on the other side, all kids of weird stuff. Basically she did it so appease the ghosts of all the people that were killed by the gun.
I went there 3 times.
You can view the entire photo set on Flickr.