A small outpost dedicated to protecting the stingless bees native to Oaxaca.

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

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

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

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

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

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

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

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

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

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

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

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

Visit 17th-century ruins on a strikingly beautiful riverside walking trail.

The ruins of a 2,000-year-old Roman fishing village perched on one of the best beaches in Spain.

An otherworldly art experience.

The effect of this ancient form of image projection situated atop an 11th century Moorish palace is thrilling.

The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

An eerie collection of the surviving structures from a past celebration of the future.

Hidden behind a wall, Spanish nuns distribute their signature sweets on a revolving tray.

A measuring mishap led to these artificial stone ladies losing their stomachs.

Mountain where Jesus was first tempted by the Devil.

One of Europe's largest supercomputers is housed inside of a disused chapel.

A beautiful but toxic fountain of mercury.