Sarah Winchester bought an 8-room house in San Jose California and started construction. When she died the house was 160 rooms, had 47 fireplaces, 17 chimneys and featured thousands of ghosts who died due to the use of Winchester Rifles. She was told her family was cursed because of that. She began construction in 1884 and stopped when she died (of course) in 1922. The house is open for viewing by those interested. Hallways lead to nowhere, staircases end at the ceiling. Doors open to drop offs to the floor below.
You might encounter a ghost or two. An adventure awaits those interested in curiosities.