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

This modest marker near Notre Dame identifies the very center of Paris.

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

The world’s largest street art museum.

A public urinal so pretty, it was declared a national monument.

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

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

The final resting place of the author who gave us the Little Mermaid, the Ugly Duckling, and many more beloved fairy tales.

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

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

Copenhagen's celebrated theme park and gardens.

Likely the world’s only place where you’re meant to skate on top of cars.

A series of sculptures, “sitting” directly on top of Berlin's existing street lamps, addressing the overlooked topic of urban light pollution.

This watchtower once presided over the Berlin Wall.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This Costa Rican topiary park is a surreal garden of unearthly delights.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

These "antimonuments" confront the Mexican authorities by memorializing the most troubling events in the country's modern history.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

CDMX's home for the world's culinary delights.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

Mexico City's largest market contains a Willy Wonka-esque wonderland.

Frida Kahlo's childhood home, now a museum of her life and works.