An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

A sprawling collection of over 106,000 toys from around the world.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

An unassuming island in the middle of the Hudson that hosts campers, including Aleister Crowley.

Two mermen, eternally spitting into each other's mouths.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

From this desk Al Hirschfeld drew his influential caricatures of the 20th century's Broadway stars.

Final resting place of the immigrant who brought artificial seltzer water to America.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

The tangled roots of a giant banyan tree have fully reclaimed the ruins of this abandoned warehouse.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This candy-colored storybook village originated as a 19th-century Methodist campground.

The world's brightest bioluminescent bay.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

A waterfall runs right through the middle of this Taiwanese shrine to the hundreds of workers killed while building a nearby highway.

This collection of lakeside pagodas and temples are flanked by giant lions, tigers, and dragons as well as their welcoming maws.

The world’s largest work of glass art hides in this stunning Taiwanese subway station.