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

This house was the subject of an Edward Hopper painting, which in turn helped inspire the design of the Bates house in Alfred Hitchcock's 'Psycho.'

Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

A whimsical monument deep in this park commemorates the groups that helped build it.

This post-war motel embodies a little-known, Miami-born architectural style.

Relics given to a Manhattan church to avoid seizure by the Italian government.

Created by a local artist, these quirky sculptures each have their own names and personalities.

Glacial erratic or man-made dolmen? It probably wasn't druids.

The poet's been ambling through these New York woods since 1940.

This sprawling woodland estate was the brainchild of iconic American industrial designer Russel Wright.

A plaque on a rock dedicated to a famous, forgotten author, and put in an impossible place.

The Brigadier General was so afraid of being buried alive that he had a buzzer installed in his mausoleum, just in case he woke up.

West Point’s only monument to a woman veteran stands above an empty grave.

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

In Cold Spring, New York, a shrine containing Godzilla and an assortment of plastic dinosaurs stands dedicated to a teenager who died in a car accident in 1996.

Reforestation in action is the main attraction in this abandoned quarry.

The largest Buddha statue in the Western Hemisphere is just 50 miles north of NYC.

This sound-art installation features songs composed using only the Mid-Hudson Bridge as an instrument.

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

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

A nearly 100-year-old dining car in upstate New York embodies the golden age of roadside dining.

These conical kilns measure an impressive 30 feet in diameter, and were once used to produce charcoal for a local blast furnace.

This isolated community does not want you to visit.