This awesome Spanish castle is so fantastical it was actually used on Game of Thrones.

Village situated on a narrow volcanic escarpment.

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

A lush indoor jungle fills this bustling Madrid transportation hub.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

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

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

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

A Spanish forest is filled with mysterious stone carvings.

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

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

This whimsical winery by Antoni Gaudí looks ripped from the pages of a fairytale.

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

An enchanting monastery in the Spanish countryside appears lifted from a fantasy tale.

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

Wonderland replication in progress by one persistent man.

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

Bacteria and algae give the salty water its bubblegum hue.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

Common all over Japan, kōbans are small community police boxes, and now one is guarding one of L.A.’s megamalls.

Opened as part of the New Deal, the training facility now features World War II-era structures and a pylon that once stood at the World Trade Center.

Dozens of feral felines rule a segment of Hollywood's only graveyard.

This "synagogue" is not what it seems to be.