Ruins in Spain

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

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

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

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

The ruins of a bombed medieval village memorialize the destruction of the Spanish Civil War.

Stuck in the middle of a modern Madrid city block are the remains of a 19th century sports complex.

Hidden well off the beaten path in Catalonia is this crumbling medieval castle that is slowly being covered in graffiti.

A site where “the ravages of the war are more striking…than any other place in contemporary Spain.”

Seaside ruins of a settlement that date back to the first century B.C.

Lava stone structures possibly dating back to the 19th century may have been a stopping point for voyagers between ancient Egypt and the Mayan Civilization.

Infamous and now demolished panopticon prison built by its former inhabitants.

This chest hospital with a dark, haunted past serves as a fitting set for horror films and a paradise for ghost hunters.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

Cursed swimming pool left abandoned is now a favorite of filmmakers and ghost hunters.

Now a pile of ruins and rubble, this was a lovely mountain town as recently as 1960.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.