Behind this pair of dragon trees, there is a tragic story of lost love.

The facade of this 16th-century building is decorated with carvings of 300 seashells.

Get a close-up look at a 16th-century Basque whaling ship at this factory and museum.

An abandoned 6th-century monastery features a medieval map of the known world.

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

This impressive former palace contains a hidden gem for fans of modern sculpture.

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

The tallest tower in Cáceres's Old Town.

An untouched lava tube accessible to the adventurers.

The spectacular geological formations make it one of the most impressive caves in Europe.

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

A thorough look at the development and history of the underground's rolling stock of the Madrid subway system.

This remote location of this Moorish stronghold means it doesn’t attract many tourists—and that it still has the aura of fear and bravery of the 1300s.

The oldest building in Madrid.

The largest cave on the island of Menorca was likely the site of Iron Age rites and rituals.

Inaugurated three times, this tower offers some of the best views of Madrid.

Nature puts on a spectacular show at this blowhole on the eastern side of Gran Canaria.

This humble bench is considered the most beautiful in the world.

Built on the foundations of an ancient Roman villa, the unique architecture of this castle on the Catalan coast was used as a set for 'Game of Thrones.'

This medieval fortification has weathered the centuries better than any other structure from its era.

Kingly French toast comes soaked in milk or red wine, then drizzled in a citrus-perfumed syrup.

Replica of Seville, Spains famous Giralda, a former minaret converted into a bell tower.

This exhibition space designed to look like the skeleton of a whale is hidden underground.

An ancient tower built during Roman times as a lookout post still stands to this day.