A 18th century graveyard and its astonishing cortege of macabre iconography.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Famously misunderstood wonder of the ancient world

A 16th-century footpath said to be haunted by a young girl that died trapped within its misshapen old house.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

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

The world's largest collection of witchcraft regalia.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

A fantastic castle rumored to be the birthplace of King Arthur.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

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

A dark Victorian well house now plays host to mystical waters and pagan shrines.

Fascinating town where normal life interfaces with the occult.

The pockmarks across the building's facade are remnants of the Blitz.

This ancient Egyptian obelisk still bears the wounds of World War I.

An architectural oddity hides in plain sight on this iconic London bridge.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Eighty million natural history specimens call this gargantuan museum home.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

A gated cross stands on the site where an Irish revolutionary met his end.