After her daughter and husband died, heiress Sarah Winchester became obsessed with the idea that spirits haunted her and to appease them she had to have a house continuously built for them. So she did - 24 hours a day for 38 years.

Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htm

And to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices