Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

This remarkable prehistoric town is full of watchtowers and houses that have withstood thousands of years.

Giant topiary dog once played a role in a terrorist bomb plot.

This enchanting hamlet carved into the rock looks like something straight out of Tolkien's Rivendell.

A magnificent place to see authentic paleolithic cave paintings that are an astounding 33,000 years old.

A breathtaking and biodiverse wilderness in the mountain setting of Ernest Hemingway's "For Whom the Bell Tolls."

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

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

This local emblem is the oldest and largest dragon tree in the Canary Islands.

Stormy conditions send jets of seawater bursting through holes in the cliffs.

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

Rare karst landscape eroded from a flat seabed.

This surreal-looking tree pruned more than 1,000 years ago is still producing olives for oil.

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

The ruins of a 2,000-year-old Roman fishing village perched on one of the best beaches in Spain.

The walls of these four caverns are filled with art that dates back to the earliest human presence in Europe.

Beautiful tiles decorate many of the town's surfaces and stand testimony to its glorious artistic history.

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

A spectacular walk on the flank of a gorge.

A hidden medieval crypt where a famous legend says the devil used to teach black magic.

The atmospheric ruins of a historic church can be found on a hill above the city of Oviedo.

These primitive rock paintings include a very beloved depiction of a woolly mammoth.

A five-square-mile slice of Spain on the Mediterranean coast of North Africa.

This panoramic lift provides a futuristic ride up San Pedro Mountain.