An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

A retrofuturistic art installation in the Pittsburgh Airport.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

This 700-year-old street food market features baby octopus and soy donuts.

A century-old network of freight tunnels underneath the city's historic business district.

Immortal combat in a Moscow museum.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

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

Possibly the world's oldest rug, this Egyptian relic is woven entirely from ancient cat hair and once carried a mummified human foot.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

An abandoned stretch of elevated road in the middle of the Brazilian jungle.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

A floating cat sanctuary on an Amsterdam canal.

An Orwellian sculpture with eyeball cameras watches passersby.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

A sweet symbol marks the place where torturous executions were once carried out.

The great Danube river starts here.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The world’s largest work of glass art hides in this stunning Taiwanese subway station.

Watch out for the two-story Godzilla made out of tires.

Mexico's first public cable car soars over the congested streets outside Mexico City.

The town of Argleton has a postal code and appears on maps and even real estate listings, yet it does not exist.