Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Remnants of cone-shaped fascist bomb shelters in Milan.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The first Catholic church in Singapore is a Neo-Gothic colossus with a rich architectural history.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

A battle between nature and architecture in the Cambodian jungle.

5,000 skulls in memorial to those killed by the Khmer Rouge.

The lavish temple of the Cao Dai religion that includes Buddha, Mohammed, Joan of Arc, and Victor Hugo.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

The most famous location in China was home to whole dynasties worth of imperial rulers.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

This probably wasn't what Mao had in mind.

The embalmed remains of the communist leader lie within a custom crystal coffin.

Enormous pendulum helps keep Taiwan's tallest building from swaying.

These charming mailboxes became social media stars after a typhoon failed to topple them.