Grotto replete with mystical designs laid out in glued shell mosaics.

This shell of a historic manor house on the Isle of Wight is said to be the most haunted site on the island.

England’s ancient oak tree has such an impressive girth, people have been hosting parties within the hollow trunk for centuries.

This ruined 15th-century hermitage is steeped in myth and mystery.

This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

Astonishing rock formations dot the Brimham Moor landscape.

This oak sculpture at the edge of a small woodland is nine feet tall and shrouded in mystery.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

These unique stepping stones hug a river's edge to take hikers on a journey through a limestone gorge.

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

The nearly 200-year-old folly has a secret spiral staircase hidden in one of its pillars.

It's possible to walk inside one of the largest Neolithic tombs in Britain.

This ancient church, rebuilt at least 3 times, is flanked at all sides by history.

A sturdy relic of Britain's once crucial gunpowder industry is now a haunting Cornish ruin.

The last resting place of the famous Native American princess is marked by a haunting monument.

This former quarry is now a vibrant labyrinth of magical in situ sculptures.

In the ruins of Glastonbury Abbey lies the alleged resting place of the legendary king.

The smallest pub in Britain was once a cabinet of curiosities and it still has the dead cat to prove it.

This ornate English estates "Prodigy House" still bears the cannonball marks of civil war.

This 15th century pub is one of only two pubs in England situated on consecrated ground.

This mysterious hilltop collection of Druid carvings isn't quite what it seems.

This historic Benedictine monastery brews a booze so toxic that it has often been blamed almost singularly for Scottish hooliganism.

The largest known medieval map of the world.

65 million-year-old chalk outcroppings mark the end of the Jurassic Coast.