Abandoned blockhouses from Nazi Germany's Atlantic Wall erode into the sea on a French beach.

Hundreds of graffiti artists have decorated this flood-wall on the west bank of the Mississippi River.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

This Greek Orthodox church houses the mummified body of St. Spyridon.

A scenic UNESCO site that doubles as a habitat for various forms of wildlife.

In the heart of Tirana, this underground nuclear bunker has been transformed into a museum.

A memorial to the atrocities of the People's Socialist Republic of Albania.

A museum dedicated to secret surveillance.

What happens when you cross a mayor and a painter?

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Cavemen, elephants, and eagles greet passengers driving through the town's main intersection.

Striking, enormous gold-plated sculpture of Buddha installed in the 19th century.

The bank's whimsical shape was inspired by a child’s toy.

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

A French artist's vague warning hangs over Belleville.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

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

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

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

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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