A museum wholly devoted to juvenescence.

Human-made caves excavated to hide a secret society of wealthy pagans.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

A village on the east coast of England that has almost completely eroded into the North Sea.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

Fantastically decorated underground chambers built in the 1760s.

The oldest inn in England served brew to the crusaders.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

The largest stone circle in the world has ended up bringing up more questions than it has answered.

England's most notorious suicide spot.

Fascinating town where normal life interfaces with the occult.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

Shakespeare, David Bowie, Dr. Who, the Saxons, Druids and Romans are all claimed to have all made their mark on these massive man made tunnels.

Museum about life, death, and cannibalism in the Stone Age.

The ancient tomb acts as a calendar that keeps perfect time.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A sculpture of a famous ape who was once a beloved household name in London.

The medieval woodcut-style artwork chronicles life in medieval London.

A mysterious shape catches the eye in this 16th-century painting.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

The commemorative stone column conceals a secret laboratory.