Places rigor Wants to Go

This semi-secret storybook hedge maze is also the oldest garden in the city.

An architect transformed this abandoned cement factory into his castle-like workshop.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

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

The unexpectedly beloved remnants of a controversial thermal power plant.

A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

Mine shafts and hard pastries await visitors at this massive mountain of salt.

This ancient Spanish castle sits high upon a hilltop.

A Romanesque tower appears when water levels drop.

Wonderland replication in progress by one persistent man.

Village situated on a narrow volcanic escarpment.

An arresting arch punched straight through a mountain provides one of the most scenic spots, and challenging climbs, on the planet.

Abandoned Nazi train station turned underground astroparticle laboratory.

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

This Navarrese cave's history of witchcraft and pagan ritual is not just embraced, but recreated each year.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

A charming Spanish village sits atop this natural limestone overpass.

One of Europe's oldest yew trees has lived more than 2,000 years.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

Devastated landscape used for hundreds of years by the Romans as their primary mining site.

This abandoned naval battery stood at the ready as recently as the 1980s.

This isolated structure beckons adventurers with sublime views of the Faroe Islands.

This remote island village was in danger of depopulating completely until a tunnel was built to connect it to the rest of the world .