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

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

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

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.

Medical and zoological curiosities for sale.

A layered tribute to the work of mosaicist Isaiah Zagar.

A bizarre house filled with an astounding array of collections.

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

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

New York's oldest magic store.

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

Dramatic river bend surrounds a natural red-rocked pedestal.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A snapshot of the city's fascinating voodoo culture.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

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.