This influential Renaissance-era library was once the haunt of kings and monks.

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

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

A magnificent, long-abandoned castle built in the wake of the reconquest of Spain.

This species of wild goat stars in witchy legends and frolics among the park's eerie rock formations.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

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

This garden houses the remains of the ancient Greek port of Marseille.

A sixth-century Byzantine cistern hidden below a modern carpet store.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

Shrapnel, dynamite, bullets and Franco couldn't destroy this bust, rescued and kept hidden as a family secret for over 40 years.

An iconic photograph from the Spanish Civil War saved this shrapnel-scarred historic house from destruction.

This enormous censer uses a pulley system installed over 400 years ago.

A section of the long chain that blocked enemy ships from entering Constantinople.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Bacteria and algae give the salty water its bubblegum hue.

A surprising and unconventional mosque hidden in the subsoil of Istanbul.

After Christopher Columbus died, his son built a fancy house to rule from.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

Over the centuries, this island paradise has done it all, from providing monks with ecclesiastical respite to sheltering an exiled Leon Trotsky.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Turkish adventurer antiques in the heart of the Grand Bazaar.