Located in San Jose, California, this peculiar mansion was built by a troubled heir to a famous firearm manufacturing firm, who was haunted by the 'spirits' of the gun victims who she believed had cursed her family. 

What started as a nondescript eight-bedroom farmhouse was transformed by Sarah L. Winchester into an architectural wonder over 36 years of almost continuous renovations that cost the modern equivalent of $92 million (£73m). 

Step inside one of America's strangest houses, with 2,000 doors, 10, 000 windows and untold secrets. Let's take a tour...