A quartet of rusting satellite goliaths are all that remain of a communication network that protected Britain from German and Russian air strikes.

When methane gas started seeping up from the ground, they picked up and moved the entire town.

Inspired by a dream, a hermit carved out a home in this sandstone bank to live a life of contemplation and prayer.

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

These bleak 800-year-old ruins were once the royal residence of choice for hunting in Sherwood Forest.

An enigmatic natural rock formation with a manmade passage cut through the center.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

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

The undercroft is a spectacular example of medieval Cistercian architecture.

This Bronze Age burial mound used to be called "Robin Hood’s Piss-Pot" until it was renamed by spoilsport Victorians.

Folklore says this medieval fortress was plopped atop a portal to hell to trap the demons below.