Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.

Tour the sci-fi-esque reality of governmental disease management.

The "Seinfeld" diner.

A reproduction of earth's many biomes.

Rustic natural hot springs in the deciduous rain forest.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

The trials and tribulations of marking Poe's grave.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

These eerie outliers of the lightning bug family glow a mysterious blue color.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

An abandoned stretch of highway, deteriorating next to the operational one.

A Bibliophile's Dream.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

Private collection of art inspired by cabinets of curiosity.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Quite simply the largest tree in the world (by volume).

A legendary speakeasy bookstore returns from the brink.

All that's left of the quintessential "cabin in the woods."