Go surfing on this urban wave, "hacked" by local surfers.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Macabre astrological automaton clock dating to the late 1400s.

Only the headframes remain from this mining operation, once one of the largest in the region.

A tribute to the city's rich history of shipbuilding.

This medieval city gate is now a blend of the past and the modern world.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This is the oldest Roman-made bridge in the city still existing in its original state.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

Go inside to really appreciate this 500-year-old technological masterpiece.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A floating cat sanctuary on an Amsterdam canal.

This Roman archeological site is hidden amid a 1930s housing estate.

An enigmatic sculpture depicts a ruined home with debris stretching for over half a mile along the river.

As one of the world's largest hydroelectric dams this plant took two countries to get built.

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

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

Inside a former cabaret, seven floors of erotic art.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Historic medieval fortified city in southwest France.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.