This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

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

The world's largest kaleidoscope, designed by a 1960s psychedelic artist.

"Gnome Chomsky" was once the largest gnome in the world, but is now simply tall for his kind.

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

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

A mysterious air force base built to resemble a Long Island fishing village.

This colossal war machine is now a living museum dedicated to underwater warfare.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

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

The building that inspired Shirley Jackson's "The Haunting of Hill House."

Post office plaque commemorates local resistance to a cult invasion.

The mansion home of author Edith Wharton.

Eighteen miniature death-scene dioramas.

An enormous, inside-out glass globe built in 1935.

Resonating tubes make music from highway overpass.

This sprawling taxidermy collection celebrates the art and history of sport hunting.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

A monument to the military service of America's greatest traitor refuses to even name him.

A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.

Believe It or Not, Ripley once called this chiseled mountainside “New York’s Mount Rushmore”.

Home to items never before seen by the public.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.