Winchester Mystery House
After the death of her husband and children, a woman named Sarah Winchester purchased an unfinished farmhouse, and over the next 38 years, turned it into the fascinating attraction it is today.
The Mystery House in San Jose, California, is a home of architectural oddities that include stairs that lead to nowhere (to a dead end or a wall), doors that do the same, a grand ballroom that was created using almost no nails, and miles of secret passageways. Some say she built the house this way to confuse evil spirits.