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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Isaac Newton's former home, where the famous apple tree still stands.

The metal frame is all that's left of a wicker sculpture which once towered over the M5 motorway.

The largest greenhouse in the world is home to over one million types of plants.

This phantom island appeared on maps for over a century before amateur radio enthusiasts beat Google Earth to the punch in its "undiscovery."

This massive chalk hill carving is one of England's most beloved giant horse geoglyphs.

The geoglyph once sported a glass bottle eye.

Cornish legend says these ancient circles were people turned to stone for playing hurling on a Sunday.

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

A local museum honors the overlooked discoveries of Mary Anning, one of the first professional fossil hunters.

A subterranean playground in an abandoned slate mine.

Astonishing rock formations dot the Brimham Moor landscape.

A beautiful medieval bridge allegedly constructed by the Devil.

Eighty million natural history specimens call this gargantuan museum home.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

The longest hedge maze in the world.

Famously misunderstood wonder of the ancient world

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This ancient bridge made of stone slabs is said to be reserved for the devil to sunbathe.

Historic medieval fortified city in southwest France.

In the quiet village of Fulmodeston, the ruins of a medieval church remain hidden among vines and foliage.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.