Anyone lucky enough to have played Turnberry, the magnificent links in western Scotland, is familiar with Ailsa Craig, the giant hunk of rock that rises ominously out of the Firth of Clyde. Background for thousands of photos and televised images from four British Opens, Ailsa Craig is 220 acres of granite, roughly three-quarters of a mile long, uninhabited except by thousands of sea birds—and for sale. It’s been on the market since 2010, originally at $4 million but recently reduced to $2.4 million by the eighth Marquess of Ailsa, whose family has owned it for five centuries. According to The New York Times, the island has a colorful history: It was a military fortification against the Spaniards and its unique, water-resistant rock is still being used to make stones for the sport of curling. The new owner probably won’t want to move in: There’s no electricity, no fresh water, and nothing will grow there. But for golfers the world over, its haunting visage is priceless.