The mysterious large white cross visible from the runway is a memorial to a massacre during Spanish Civil War.

The morbid items in this small and hidden museum are not for the weak stomached.

Earth's rocky history has rarely glittered so brightly as it does in this Spanish museum.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

Shrapnel, dynamite, bullets and Franco couldn't destroy this bust, rescued and kept hidden as a family secret for over 40 years.

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

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

The lengthy skeleton of one of the tallest Spaniards of all time is on display in Madrid.

An ancient Egyptian temple in the middle of Madrid, Spain.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

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

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

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

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Week-long block party becomes a competition for the best decorated street.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Mountain where Jesus was first tempted by the Devil.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

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