Two can tour through 110 of the 160 rooms of the bizarre Winchester Mystery House in San Jose. See a window built into the floor, staircases leading to nowhere, a chimney that rises four floors, doors that open into blank walls, and upside down posts! No one has been able to explain the mysteries that exist within the Mansion, or why Sarah Winchester kept the carpenters' hammers pounding 24 hours a day for 38 years.