Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

Toxic waste disaster that founded the Superfund program.

An abandoned castle owned and ignored by Masons carries a cursed history.

A historic recreation of the golden age of the Erie Canal, abandoned for some time, slowly being restored.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

The lost town of Neversink, sunk by New York City.

This Central New York ghost town was once a prosperous railroad community.

100 massive sculptures in the Hudson River Valley.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

The attic and basement house two museums stuffed with oddities like swallowed spoon handles and a shrunken head.

The Vatican of the movie industry turned into an actual church.

A collaborative art project that transformed a neighborhood in NYC's Queens.

An artist's cute bronze subway sculptures belie his violent artistic past.

The "Seinfeld" diner.

A wunderkammer hidden on the top floor of the Hartford statehouse.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

One man's swirling six-acre monument of stone.