A 15th-century former coaching inn forms the implausibly grand entrance to a 1980s shopping mall.

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

These caves secretly held national treasures during World War II.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

These ancient ruins hide in plain sight next to a dessert shop.

Where commuters walk through remnants of an ancient Greek necropolis.

One of the greatest collections of coins in the world is housed in the former mansion of an archeological pioneer.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

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

The video game-themed street art first popped up in the French city.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

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

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Tens of thousands of tiny bottles stuffed with various items.

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

The Brutalist building harbors an unusual inverted dome that swoops down over its central sacred room.

By night, this auto repair shop turns into a taquería serving up some of the city's finest al pastor tacos.

The world's northernmost brewery uses water from a 2,000-year-old glacier to create its beer.

This Mexico City subway station will make you feel like you've been transported to the London Underground.

Thousands of miniature bronze sculptures have taken over this city square creating a unique art installation.

This floating sculpture of ice is a poignant reminder of nature's power.

In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.