An early 20th-century bullring converted into a modern shopping center.

One of Europe's largest supercomputers is housed inside of a disused chapel.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A solitary lighthouse in Spain was an inspiration to the great Jules Verne.

Two creeks flow out of either end of this canyon in opposite directions.

An ancient tunnel in Jerusalem built to redirect water in the event of a siege is one of history’s great architectural innovations.

These numerous Israeli caves were dug out over hundreds years for reasons ranging from hideouts to burial sites.

A serene desert oasis speckled with ancient artifacts.

The home of the Dead Sea Scrolls is an abstract modernist dream.

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.