Collapsing castle on the Hudson river was once the storage site of military surplus business.

The legendary building that needed ghostly approval before being built.

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

The rocks in this arid basin leave trails of movement behind them.

A huge musical instrument played by the ocean.

A giant chess set, minus the psychedelic drug trip.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

An offbeat angle on the ocean viewed through an antiquated lens.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."