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

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

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

This enigmatic artifact is a rare depiction of an ancient Iberian noblewoman.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

This embalmed man is one of the best preserved mummies from the Canary Islands.

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

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

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

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Commonly acknowledged as the only public monument to the Devil himself.

One of Madrid's oldest trees, with a long and colorful history, resides in El Retiro Park.

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

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

The earliest known map to show America, discovered by accident at a Paris bookshop.

Sometimes called the Banksy of Madrid, Muelle was a pioneer of street art in the Spanish city.

A small museum displays some of the artifacts discovered during a subway station renovation.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

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

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

This fascinating and poignant museum chronicles every imaginable aspect of Spanish colonialism in the Americas.

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

King Carlos IV laid the first stone during construction of this chapel.