These magnificently sculpted tombs represent Spain's own legendary version of "Romeo and Juliet."

The tallest tower in Cáceres's Old Town.

The largest medieval water tank on the Iberian Peninsula is preserved beneath the Cáceres Museum.

The most elaborate of 12 medieval arched doorways to the old city of Burgos.

This Gothic church houses ornate royal tombs and a magnificent gilded altarpiece.

Geological storytelling.

Cliffside houses provide a spectacular view from their perch above the valley.

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

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

Whether they are bulls or pigs, these ancient animal sculptures are fascinating relics.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

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

A lush indoor jungle fills this bustling Madrid transportation hub.

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

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

This peculiar Italian elevator runs both horizontally and vertically.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Five candy-colored villages on the Italian Riviera.

A lover's walk between hilltop towns, decorated with graffiti love notes.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

Stalactites and stalagmites in a beautifully lit cave.