The world's largest wooden structure.

This amazing piece of modern art honors the hundreds of fishermen killed during Cambrils' "year of misfortunes."

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

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

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

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

Despite its grandiose name, this enigmatic first-century void under the town is no cave, and it's possibly not a palace either.

This abandoned viewing platform has become a monument to unnecessary government spending.

This surreal-looking tree pruned more than 1,000 years ago is still producing olives for oil.

Rare karst landscape eroded from a flat seabed.

An enormous roadside attraction in the heart of Spain's toy-making hub.

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

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

A lovely look back at the manufacture and use of paper in all its forms.

This magnificent brick dome was made with an unusual design method.

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

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

The magnificent sanctuary is Spain's first purpose-built structure of its kind.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

This small Spanish village still pays homage to the Spaghetti Western films that were shot there in the 1960s.

This panoramic lift provides a futuristic ride up San Pedro Mountain.

The odd cement nubs littering this Spanish square are actually the entrances to a series of buried silos.

The last of three massive blast furnaces that were once at the foundation of the Port of Sagunto economy.

This house covered in small stones was the work of one man over the course of nearly 30 years.