Teeny tiny hotel on the coast of the Canary Islands.

A house covered entirely with shells.

Founded as a refugee camp, now a popular tourist spot.

A Spanish artist builds his own castle.

Haunted tuberculosis hospital built by the patients.

An enchanting landscape of ancient sandstone structures eroded into otherworldly shapes.

Two 2,500-year-old Phoenician boats found on the coast of Spain, giving incredible insight into the ancient maritime traders.

Abandoned tunnels dug for the once-thriving sea salt industry on the coast of southern Spain.

Remnants of the rich history of fish salting in this ancient Mediterranean port town.

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

The two massive guns that defended Cartagena Bay.

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

The true depths of these stunning Moroccan caves are unknown.

The world's first electric battery-powered submarine.

An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

Dead weights honor the dead of Portugal's fishing industry.

Crumbling necropolis set high above Fez.

Traditional 11th-century outdoor tannery.