This Roman arena once played host to bloody gladiatorial battles.

Long tunnels run under the ancient chariot racing circuit to the tower.

This magical space partly designed by Antoni Gaudi is one of the best examples of romantic gardening in the Mediterranean.

A whimsical garden of outsider art in the Spanish countryside.

The blowhole bursts spectacularly right next to the buildings in a medieval seaside town.

This memorial, built by fascist dictator General Franco in 1960, has been repurposed by the people of Catalonia.

A botanical garden full of thought-provoking contemporary sculptures.

For more than half a millennia, this automaton has rung an hourly bell.

An Antoni Gaudí masterpiece in Astorga.

This enormous censer uses a pulley system installed over 400 years ago.

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

This ancient tunnel is one of the most important examples of Roman hydraulic engineering in Spain.

The world's first electric battery-powered submarine.

This abandoned gold mine found a second life as a post-apocalyptic film set.

Once used to calculate the various levels around the country.

Legends surround this natural rock formation that looks like a Moorish king wearing a crown.

A celebration of solstice followed by a fiery purging of evils.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

Fascinating exhibits of prehistoric and ancient artifacts displayed with a uniquely modern touch.

Originally planted by the ancient Carthaginians, this sprawling palm grove is one of the largest in the world.

The 20th-century church looks like a rustic version of the Sagrada Familia.

A significant cache of prehistoric valuables is on display in an unassuming museum tucked inside a town hall.

Commemorating a battle where French troops were commanded by an Englishman, and English troops by a Frenchman.

This ancient rock painting is the oldest evidence of humans’ love affair with honey.