This enchanting hamlet carved into the rock looks like something straight out of Tolkien's Rivendell.

The writer's study, a “portable museum,” is on display at the Museum of Contemporary Art in Madrid.

This mural, which made perfect sense before the metro stop changed its name, now feels out of place under the station's new name

The remains of this old Madrid wall are attached to a fire station

At only 14.25 meters long, Travesía del Biombo is the shortest street in Madrid

This peculiar device allowed pianists to exercise their fingers

This sculpture is a reminder of the old lamplighters of Madrid, a profession that is now extinct

This engraved safety pin has possible links to the haberdasheries located in this humble square

This modest lottery shop draws hopefuls all year long, but come Christmas season, lines wrap around the block.

One of the most important pieces in the Madrid History Museum and one of the oldest historical models of a city in Europe

A crypt of relics guards a vial said to liquefy each July

Most visits to the Almudena Cathedral in Madrid ignore the eeriest part of the building, its crypt

Princess Kristina played a pivotal role in fostering diplomatic ties between two kingdoms, Norway and Spain.

The former home of a conniving 17th century politician is now a high-end hotel.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.

For more than half a millennia, this automaton has rung an hourly bell.

Part of the wall is preserved in the aptly named Parque de Berlín in Madrid.

This taberna has been frying up crunchy salt cod since 1860.

A breathtaking and biodiverse wilderness in the mountain setting of Ernest Hemingway's "For Whom the Bell Tolls."

A neighborhood represented by an apparent geocentric and flat-earth model of the Solar System is hidden in the subway of Madrid.

Built to power trains, the engines in this building provided the entire city of Madrid with electricity during the Spanish Civil War.

Replicas of fossils unearthed during renovation work reveal how this area would have looked millions of years ago.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

An homage to the first Spanish cyclist to win the Tour de France.