This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

The world is full of swimming holes, but few compare to Samoa’s idyllic To Sua ocean trench.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.

A late-medieval Dutch castle with trick fountains in its whimsical water gardens.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

Amsterdam's former hotspot for public executions and dissections.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

This plaza is home to a number of works, including Montpellier‘s own Arc de Triomphe.

This French anatomy museum greets guests with a skinless man, mid-shovel.

100-windowed castle turned art gallery, built by one dedicated mason.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

An opulent monument built for a duke who donated his entire fortune to the city of Geneva.

One of the most historical literary characters continues to stroll his hometown.

A beautiful maze marks where three countries meet.

This cheese shop also houses a museum devoted to Dutch dairy.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Museum preserving torture methods from the past.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

A road that winds through this natural cave is the only way to access the small, appropriately-named village of Cuevas.