A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

The oldest Roman lighthouse still in use.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

A 16th-century Andalusian palace.

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

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

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

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

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

Commonly acknowledged as the only public monument to the Devil himself.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

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

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

This intriguing Bronze Age artifact spent centuries hidden within a Welsh faerie hill.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Charles Babbage's proto-computer, painstakingly brought to life.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.