Left by the Devil, an ancient quarry or just plain old erosion, this enigmatic rock pillar rises 28 feet from the hillside.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

Centuries of human activity have forged an eerie landscape of ruins and craters on an exposed and windswept hilltop.