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

A Spanish artist builds his own castle.

This "flat geyser" bubbles up out of the ground periodically like a disappearing river.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

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

An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

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

The oldest Roman lighthouse still in use.

Numerous sculptures set along hiking trails symbolize and idealize the relationship between man and nature.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

Of course Salvador Dalí lived in a castle...

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Stunning Roman aqueduct used for 1900 years and still standing.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

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

This awesome Spanish castle is so fantastical it was actually used on Game of Thrones.

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

A landscape decorated with enormous skull sculptures.

A Spanish forest is filled with mysterious stone carvings.

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

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

The colony of South Australia was proclaimed on a hot December day under a distinctively arched gum tree.

One of Australia's largest secondhand bookstores.