Three bridges straddle a stream, one stacked upon the other.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

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

Have a seat with the father of modern computing at this Manchester monument.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

These mysterious religious carvings were once thought to be thousands of years old but are actually the work of modern eccentric.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

This Scottish burial tomb once held hundreds of ancient eagle bones.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

This series of Scottish caves has no clear purpose other than baffling historians.

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

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Physicist’s epitaph provides final confirmation to a career of turmoil.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

An exquisite Baroque church in Vienna's old town.

A silly medieval mural preserved on the side of a Viennese house.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

Baroque celebration of the end of the Great Plague of Vienna.