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

An abandoned Indian-inspired mansion.

Giant granite sculptures representing family on the northern coast of Spain.

An eccentric collection of antique items shares space with a prop-quality witchcraft museum.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

Bold black and white motifs of life and death add a dramatic flair to this 17th-century crypt.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

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

Three bridges and one giant canyon make up this fantastic Spanish settlement.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

Tubing through a cave lit with glowworms is a magical underground experience.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

A unique seaside cave where Aleister Crowley faked his own death.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

An abstract monument to a symphonic composer.