Winchester Mystery House

In 1884, Sarah Winchester — widow of the heir to the Winchester rifle fortune — bought an unfinished eight-room farmhouse in San Jose and began building. Legend holds that a medium had told her the spirits of those killed by Winchester rifles would torment her unless she built ceaselessly. Whether grief, guilt, or architectural obsession drove her, construction reportedly ran nearly around the clock until her death in 1922.

The result defies description: some 160 rooms, 40 bedrooms, 10,000 windows, 2,000 doors, 47 staircases — many of them climbing to ceilings or walls — and doors that open onto sheer drops. Yet amid the oddities sits genuine craftsmanship: California redwood throughout, stained glass including pieces by Tiffany, and rooms that curve and fold in on themselves like a fever dream made of timber.

The 1906 earthquake toppled its upper stories, and today it stands four floors high. Open to the public since 1923, it is a California historical landmark and on the National Register of Historic Places — less a house than a monument to one woman's extraordinary refusal to stop building.