A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

A stately palace has been converted into the world's largest cannabis museum.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

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

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

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.

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

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

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

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This crumbling Portuguese ruin overlooks the populace it once ruled.

Perhaps the most spectacular grotto along the Algarve coastline.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."