The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

Quite simply the largest tree in the world (by volume).

This piece of early engineering is rather unknown despite its location in the heart of Madrid.

Bold black and white motifs of life and death add a dramatic flair to this 17th-century crypt.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

An ancient Egyptian temple in the middle of Madrid, Spain.

Just like in Hollywood, Madrid has also a forgotten walk of fame.

The remains of a convent turned military barrack in the heart of Madrid.

After the queen of Spain had a dream where these statues fell and crushed her, they were removed from the palace and given new homes around Madrid.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

A pair of gigantic baby heads greet passengers at Atocha Station.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

A lush indoor jungle fills this bustling Madrid transportation hub.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

This graveyard is the eternal home of many brave pioneers who settled the Great Northwest.

You might recognize this historic Oregon mansion from its appearance in 'The Goonies.'

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

The fairy tale castle of the "fairy-tale king."

A unique bridge with an equally unique view.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

The unusually large seat sits atop the base of a ruined temple.

This beautiful 19th-century temple stands atop the ruins of its predecessor.