A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

This Parisian gem is one of the most incredible ethnographic museums in the world.

Former hunting lodge of a duke who was an avid collector of impressionist works.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

This bridge was constructed from the rubble of the infamous Bastille.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

A surrealist timepiece by the artist of melting clocks.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A mechanized clock where a man fights off a dragon, crab, and rooster.

Paris' linguistic guide to the international language of, yes, love.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

The oldest stone house in Paris was built by its most famous alchemist.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

This man-made mound monument was built out of soil from all across the Polish empire.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

A spherical "micro-nation" in the heart of Vienna.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Sail in for a ’dam good slice.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

A beautifully eclectic mix of architectural styles.