A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

This 11th century tower is said to be the oldest building in Oxford.

Used as an example in one of the first dictionary entries for "museum" in 1706.

The ruined remains of the airport Claus von Stauffenberg departed in his failed attempt to kill Adolf Hitler.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

Electricity pylon standing in the middle of a shelter.

Amöneburg is a town perched on top of a basalt mountain in the middle of an ancient meteor crater.

The many—66 to be exact—faces of the German forest.

A climbing route in the mountains of Italy’s Dolomites, built for soldiers during World War I.

This sculpture commemorates Edinburgh's sister city and their respective celebrity dogs.

Ancient human remains unearthed around the iconic monument.

Soldiers carved these regimental badges into the chalk hills in remembrance of those who died in World War I.

One of the highest mountain passes in Europe has been ranked among the best driving roads in the world.

This striking statue brings a scene from the African savannah into central London.

Where Aleister Crowley attempted to seize the Hermetic Order of the Golden Dawn in a mask and a kilt.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

A 12th-century Italian skirmish gets reenacted with 500,000 pounds of flying citrus.

The plague quarantine island home to the alleged "Vampire of Venice."

These subterranean storage areas hold emergency water reserves.

100 year tradition of fist fights, marked by marble footsteps.

Venice's island of the dead.

Hanging within this medieval church are the bones of a beast allegedly slain by a fourth-century saint.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.