A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

The world's largest reflecting pool is just two centimeters deep.

This enormous censer uses a pulley system installed over 400 years ago.

A 12th century church completely covered in shells.

An Antoni Gaudí masterpiece in Astorga.

A historic Christian shrine nestled within a spectacular natural cave.

Giant topiary dog once played a role in a terrorist bomb plot.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

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

This grandiose staircase was part of the revival of a medieval Spanish architectural style combining Christian and Islamic influences.

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

A lush indoor jungle fills this bustling Madrid transportation hub.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

The final resting place of the great navigator, or maybe his brother.

The world's largest wooden structure.

The effect of this ancient form of image projection situated atop an 11th century Moorish palace is thrilling.

A complimentary beverage is offered to the bodega's resident rodents every day.

The ruins of a 2,000-year-old Roman fishing village perched on one of the best beaches in Spain.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

Single runway interrupted by a busy road that cuts across its middle.

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

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

This quaint Spanish village agreed to be painted blue as a marketing stunt but found that they preferred it that way.