Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

Founded in 670, this ancient mosque is an architectural time portal.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

Morocco’s modern capital was once a haven for Barbary pirates, who went so far as to establish a republic of their own.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

The other side is actually green.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

This fountain was designed to honor the man who helped bring water to Barcelona.

A large collection of solar and night-time telescopes dot a small area on the Teide mountain range.

This replica of Columbus's famous ship houses the history of La Palma's maritime importance during the Age of Exploration.

The world's first electric battery-powered submarine.

The two massive guns that defended Cartagena Bay.

This historical manor is complete with a magnificent garden.

Spain's largest bullring offers a unique glimpse at architecture and history.

These wooden balconies that are both decorative and functional.

The world's most elegant power lines.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

This mountaintop observatory is home to one of the world's largest reflective telescopes.

A well-restored ancient archaeology site gives a real feel for life during the Roman age.

An impressive display of ships and artifacts from the ancient Mediterranean maritime trade.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.