This beautiful 19th-century temple stands atop the ruins of its predecessor.

This lurid German fountain plots the sad course of marriage from dating to death.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

France's most famous cemetery, with some of its most curious tombs.

The first green space constructed on an elevated viaduct.

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.

The world's largest reflecting pool is just two centimeters deep.

An atmospheric, medieval-themed book store hides in a 13th-century underground space.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

The oldest operating pharmacy in the world features 800-year-old recipes.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

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.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

The artist and his brother are buried in a landscape straight out of a van Gogh painting.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Copenhagen's celebrated theme park and gardens.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.