Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

This abandoned ironworks was once the most important military supplier in America.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

The rustic think-space of famed naturalist John Burroughs stands exactly as he left it.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

The famous author's cottage hideaway.