This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

An unassuming secret door once led to a legendary watering hole.

From scholastic to sepulchral - now under reconstruction.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

Elevated freight railway turned wildly successful urban park.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

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

A multi-storied adobe complex has been inhabited for more than a thousand years.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

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

Ruins of a Carnegie family mansion on Cumberland Island.