This macabre monument atop an ancient well gives a nod to a brutal episode in Scottish clan history.

It's believed this well was once plagued with evil spirits until St. Columba purified the water.

The phone booths in this English town have distinctly milky hues.

This mummified mermaid corpse is an aquatic curio that was eventually revealed to be a fake.

Lewis Carroll's White Rabbit or something else altogether?

Britain's tallest megalith towers over the cemetery of a quiet English village.

This Greek Orthodox church houses the mummified body of St. Spyridon.

A Spanish artist builds his own castle.

Hidden underground, a remarkable 10th-century bath complex survives virtually unaltered.

A reproduction of the famous prehistoric cave paintings is hidden underground at the National Archaeological Museum.

This enigmatic artifact is a rare depiction of an ancient Iberian noblewoman.

This lucky bronze frog was gifted to Madrid by a casino.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

Once used to calculate the various levels around the country.

Fascinating exhibits of prehistoric and ancient artifacts displayed with a uniquely modern touch.

A celebration of solstice followed by a fiery purging of evils.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

Harry Potter’s Hogsmeade Station is also a charming blast from the past situated in North Yorkshire.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

A thousand year old oak tree survives in Liverpool.

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