Bacteria and algae give the salty water its bubblegum hue.

One of the most important Celtic-Roman archaeological sites in Spain.

Mysterious Spanish catacombs of unknown origins.

Blue-green pools and smooth stones comprise one of Spain’s most idyllic hidden wonders.

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

The ruins of an ancient stadium that hosted gripping chariot and horse races.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

Haunted tuberculosis hospital built by the patients.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

A cheese discovery made by shepherds became the pride of a region.

Fragments of human bones are embedded in the walls of this quaint alley.

The tallest tower in Cáceres's Old Town.

A strange anthropomorphic stele with a mysterious inscription that has never been deciphered.

The largest medieval water tank on the Iberian Peninsula is preserved beneath the Cáceres Museum.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

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

This former royal palace with gorgeous gardens became the first museum in Morocco.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

Crumbling necropolis set high above Fez.

This small chapel is built of human bones and decorated with a golden skeleton.

A Spanish artist builds his own castle.

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

This amended headstone marks the grave of a participant in one of the most successful military deceptions of all time.

A mythical garden that once grew the golden apples of wisdom is said to have existed in this ancient Moroccan city.