The largest crypt ever constructed in France was built in the 11th century on an ancient Druid sacred site.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

The famous winding walk at Chartres is surrounded in mystery and myth.

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

Legends surround an ancient tree trunk riddled with nails for good luck.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

The final resting place for the remains of 143 Habsburg royalty.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

Dedicated to a synagogue that was destroyed after having survived World War II.

This sculpture is a reminder of the old lamplighters of Madrid, a profession that is now extinct

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

Try not to get slimed in Tribeca.

This crumbling little graveyard was saved from the undergrowth by concerned veterans.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The patron saint of spinsters grasps a container of dried blood.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

The 570-ton boulder that gave a New Jersey town its name.

This gate served as a small lock-up jail in the 14th century.

The twice-stolen hand of an alleged card cheat, with its final set of playing cards.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.