This monument gives insight into how lost children were found in Edo-period Tokyo.

A brutalist gem towering over the heart of Milan.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

Venice's island of the dead.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

One of the earliest depictions of an Arthurian scene that is shrouded in mystery.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

Once a dining hall for boarding school students, this lodge was a popular haunt for nuclear physicists working on the Manhattan Project.

Remnants of an old bank adorn this station's brick wall.

Designed by a computer, this intricate network of fluorescent green pipes has taken over a subway station.

This quirky collection of furniture also happens to be a public art installation.

A shrine dedicated to a 10th-century samurai emperor, whose head is not buried on site (contrary to popular belief).

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."

Take a few seconds to look at this abandoned, art-filled station as you pass by on the subway to Ueno.

Inspired by the famous sculptures on Easter Island, this head serves as a popular meeting spot by Shibuya Station.

An enormous pair of straw sandals woven in the traditional way—to keep demons at bay.

Home to the world's oldest wooden building.

Noble beasts perhaps, but not the Emperor's dogs.

Mythical beasts symbolizing the city of Tokyo guard a historic bridge.

A site where ten to twenty thousand Edo-era prisoners were put to death.

Is this cat asleep or just pretending?