Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

This 14th century wine cellar is home to the oldest barrel-stored wine in the world.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

There has been an astronomical clock on this spot since the 14th century.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This ferry carries passengers across the Rhine propelled by no engine or paddles but by the river's current.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

The smallest museum in Basel, Switzerland, is a two-foot-by-two-foot window in the door of a 600-year-old house.

This artistic fountain display pays homage to this area's theatrical history.

A futuristic rocket marks the spot where three borders meet.

The most impressive of Basel's three remaining city gates.

A contemporary art installation housed within a Gothic cathedral.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

Napoleon's childhood home is now open for people to explore the beginnings of France's short general.

This tiny chapel withstood a massive mudslide and flash flood.

Five candy-colored villages on the Italian Riviera.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

Futuristic apartment blocks are the backdrop for Montreal surfers hangin' ten on the Habitat '67 standing wave.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

The skyline of Montreal includes the silhouette of an unexpected fruit-shaped Canadian staple.