This technological marvel is one of the world's first 3D-printed bridges.

The mysterious large white cross visible from the runway is a memorial to a massacre during Spanish Civil War.

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

A huge cathedral single-handedly constructed by one eccentric monk.

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

The morbid items in this small and hidden museum are not for the weak stomached.

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

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

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

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

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

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

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

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

A lush indoor jungle fills this bustling Madrid transportation hub.

This funky former tobacco factory is one of the most striking examples of Madrid's cultural diversity.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

The ruins of an ancient stadium that hosted gripping chariot and horse races.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

A daily pyrotechnic celebration marks a beloved tradition during Valencia's festival season.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Vibrant street art created with mixed media.