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

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

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

Bacteria and algae give the salty water its bubblegum hue.

Haunted tuberculosis hospital built by the patients.

This small Spanish village still pays homage to the Spaghetti Western films that were shot there in the 1960s.

This abandoned, turn-of-the-century astronomy hub is now the subject of more photographs than it ever took.

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

The extensive relics of an ancient Roman and Phoenician fish processing plant hide in a town park.

Bold black and white motifs of life and death add a dramatic flair to this 17th-century crypt.

This art installation at an abandoned lipstick factory has distinct anti-capitalist vibes.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

Moorish signal station on a stratgic rocky outcrop.

The defensive tower was built centuries ago to warn locals of Berber pirate attacks.

The cathedral of a controversial, conservative, schismatic sect that declared the Catholic Church heretical and founded its own succession of popes.

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

The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

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

An 11th-century medieval castle cascades over the town of Numão.

A fortress off the West coast of Portugal that dates back to 1502.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

Perhaps the most spectacular grotto along the Algarve coastline.

A windswept necropolis carved into the rocks overlooks the "most Portuguese town in Portugal."

This star-shaped military outpost is now simply trying to protect itself from neglect.