A one-of-a-kind collection of a unique medium.

America's most famous piece of self-built architecture.

Medical and zoological curiosities for sale.

A giant Troll lurks under one of Seattle's oldest bridges.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A layered tribute to the work of mosaicist Isaiah Zagar.

Try not to get slimed in Tribeca.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The legendary building that needed ghostly approval before being built.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Dramatic river bend surrounds a natural red-rocked pedestal.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Most-visited and most-photographed slot canyon in the American Southwest.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

Rippling sand dunes frozen in the Arizona rock.