A rocky outcrop where monks hid their most holy relic while escaping Danish invaders.

The largest preserved walking dragline excavator in Western Europe.

The oldest operating roller coaster of its kind, the Montaña Suiza has been thrilling riders since 1928.

A medieval village holds a very modern hotel.

Hundreds of preserved dinosaur footprints can be found along a hiking trail in this small village.

For more than half a millennia, this automaton has rung an hourly bell.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.

This Gothic church houses ornate royal tombs and a magnificent gilded altarpiece.

A charming Spanish village sits atop this natural limestone overpass.

The former home of a conniving 17th century politician is now a high-end hotel.

During an annual Catholic feast in this tiny Spanish village, men dressed as devils leap over rows of babies to cleanse them of sin.

A small church ornamented with medieval erotic sculptures.

A spectacular walk on the flank of a gorge.

A harrowing sculpture commemorates the four people shot down during the workers strike of 1842.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

These haunting ruins belong to an ancient village that once had one hell of a view.

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

Peek into a cave of giant, glimmering crystals.

The world's first electric battery-powered submarine.

An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

Banished from town, this local jester concocted a clever return.

A giant bug impaled on a 75-foot-tall needle.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.