An abandoned dollhouse factory.

A once grand hotel is being retaken by the wilderness it once capitalized on.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

An outlandish shoe shaped house built by an eccentric millionaire.

In which a local geological marvel becomes a quaint roadside attraction.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

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

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

A toxic ghost town sitting atop a massive coal fire.

One of Oahu’s best snorkeling and diving spots was created by warm water discharged from the nearby power plant.

A 1940's shrine dedicated to drowned fishermen on the outskirts of Honolulu.

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

An ode to one of the first concerts broadcast via satellite.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

Taking the subway here means doing so over a bridge located in the middle of an estuary.

A fountain standing as a testament to a doomed alliance.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.