A 1920s home transformed into an immersive art experience, where every room is a portal to another realm.

A 140-year-old castle with underground caves hidden in San Francisco.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

An essential stop before plundering, BYO Cutlass.

The only theatre in the world constructed specifically for sound movement.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

This 19th-century church is now a popular roller rink.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Colorado's only true geyser is hidden within the San Juan National Forest.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

The ancient sauropod tracks found in this former quarry are some of the largest in the world.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.

This stunning concert hall has become a symbol of Iceland's national recovery.

This black church sits alone among a field of lava rock.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

One of the deepest indoor swimming pools in the world.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Drive past the giant fruit sculptures and up to the window for a menu of fruity treats.

This medieval castle was painted pink as part of a now-abandoned children's theme park.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

Colorful and chaotic stacked hotel in North Holland.

Europe's first floating restaurant is home to a hilarious legend.

To enter this cluttered-yet-cozy sanctum of Belgian brews, ring the bell and tell the gatekeepers you've come “to taste beer.”