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

At this century-old barbershop, clients used to be entertained with a glass of brandy and a cigar.

This girder was hit by a bomb during the Spanish Civil War, but nobody knew about it until 2016.

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.

Automatons that were once removed after one fell from the building.

The oldest vestiges of Madrid found here, have been incorporated into this new museum.

Hidden under a center for the elderly are the dungeons which were used during the Spanish Inquisition.

A thorough look at the development and history of the underground's rolling stock of the Madrid subway system.

The oldest building in Madrid.

Dedicated to a young woman who broke gender barriers at the University of Madrid.

This Art Nouveau gate still stands at the former entrance of a 20th-century Spanish writer's colony.

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

The remains of this misplaced church were moved here stone by stone.

A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

A must for film lovers in Madrid and home to the Spanish Film Library's projection space.

Not far from Madrid, a set of perfectly preserved trenches date back to the Spanish Civil War.

A vault of safe-deposit boxes in an old bank has been repurposed as a time capsule of Hispanic culture.

Remains of the lost church hide beneath this Spanish Parliament building.

Strange masks and obscure costumes are housed in this old Madrid corrala.

Five million people are laid to rest here, more than the population of Madrid itself.

A unique exhibit lets blind people experience famous works of art and architecture with their hands.

This postmodern apartment block was designed to be a vertical neighborhood.

A reproduction of the famous prehistoric cave paintings is hidden underground at the National Archaeological Museum.

Order cookies baked by cloistered nuns in a 400-year-old monastery.