The movie Winchester (2018) is about a firearm company heiress who fears the ghosts of all the people killed by the gun that made her fortune, so she consults psychics and begins building a vast house to appease the spirits. What many people don't know is that, going so far, this part is a true story. There really was a Sarah Winchester and her mansion stands today in the Santa Clara Valley, California.
The present author has been lucky enough to take this tour when I was a kid, fascinated by real-life ghost stories. For those of you who aren't going to make the trip, here's a video tour exploring the architecture and craftsmanship of this amazing mansion. They downplay the ghost stories just to talk about the design for a change.