Six neolithic sandstone boulders remaining from a dolmen.

A dramatic sculpture high up in Yorkshire with vistas on an industrial scale.

A 600-year-old mini shrine guarded by a sword-wielding knight hides in a crumbling cliff face.

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.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

Each year a new straw behemoth is born.

Lord Byron's embalmed body lies within this medieval church.

The undercroft is a spectacular example of medieval Cistercian architecture.

A mysterious medieval monument said to mark the final resting place of Robin Hood’s henchman.

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

The English bed-and-breakfast believed to have inspired Emily Brontë's novel "Wuthering Heights."

This muddy wooded valley and the ancient structures it hides are said to be the favored haunt of the legendary Friar Tuck.

English Protestants once criticized this enormous private chapel for being too ornate.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

This lonely metal cross may hint at the true location of a medieval showdown between Christian and Pagan kingdoms.

This antique shop and tea room reside inside a twice defunct church that was moved stone by stone to its current location.

Legend has it the famous Robin Hood would attend mass at this 12th-century Cistercian abbey in Sherwood Forrest.

A creepy tree with a local legend that inspired a nearby theme park ride.

This 2,000-year-old tree inspired the nursery rhyme "Rock-a-bye Baby."

This poignant WWI memorial looks like a lighthouse 100 miles from the sea.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

This crumbling folly looks like an enchanted left over from Middle Earth.