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

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

These three pillboxes still remain as a witness of the Spanish Civil War in a park of Madrid.

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

Shrapnel, dynamite, bullets and Franco couldn't destroy this bust, rescued and kept hidden as a family secret for over 40 years.

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

Inside this church are the alleged remains of the patron saint of lovers, epileptics, and beekeepers.

The unfinished final resting place of some of Spain's most prominent politicians.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

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

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

A model solar system adds a celestial touch to this suburban park.

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.

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

A subterranean relic of the Spanish Civil War hides below this picturesque park.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

This small museum tucked within a subway station holds pieces from Madrid's past.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

Stuck in the middle of a modern Madrid city block are the remains of a 19th century sports complex.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

This species of wild goat stars in witchy legends and frolics among the park's eerie rock formations.

This lucky bronze frog was gifted to Madrid by a casino.