A shrine of fire worship built on top of a natural flame.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

A unique attraction and museum dedicated to exploring iconic roadside structures.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

Failed state-supported institution meant to rehabilitate students with intellectual disabilities.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

An illegally built ramshackle mansion tucked in the middle of Brooklyn is now being turned into condominiums.

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

A toxic ghost town sitting atop a massive coal fire.

Structure built from the skulls of vanquished foes.

On La Gomera, "Silbadors" communicate in a 4,000-word language of whistles.

Haunting monument to the German Jewish philosopher who died while fleeing fascism.