Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

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

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

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

Guitarist Paco de Lucía overlooks travelers as they pass through this train station dedicated to his legacy.

Infamous and now demolished panopticon prison built by its former inhabitants.

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

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.

An exact replica of a colossal Olmec head sits atop a pyramid within a Madrid traffic circle.

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

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

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

A lush indoor jungle fills this bustling Madrid transportation hub.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

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

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

An eclectic collection of thousands of items owned by the sculptor Frederic Marès.

The unexpectedly beloved remnants of a controversial thermal power plant.

An early 20th-century bullring converted into a modern shopping center.

For one day every month Barcelona's Estació de França transforms into a market for model trains.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.