This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

The mysterious large white cross visible from the runway is a memorial to a massacre during Spanish Civil War.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Also known as Rye Castle, this 13th-century fortification later became a prison and held one of Rye's most famous criminals.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

A statue meant to celebrate peace has also been interpreted as a mother taking away her son's internet privileges.

Unbeknownst to most passersby, this marble statue standing outside an office building is a genuine piece of second-century Rome.

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

A flight of this "ghost staircase" has 40 steps on the way up, but only 39 steps on the way down.

This iconic sluice gate is a favorite haunt for joggers, fishing enthusiasts, and even ghost hunters.

The last remaining pre-dreadnought battleship in the world has been a museum for nearly a century.

A small island with no monkeys but plenty of military ruins.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

The once highest point in China blends symbolic design with a kick of adrenaline.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

London's smallest police station is barely the size of a phone booth.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.