This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

New York City's smallest piece of private property.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

One of only two commuter aerial tramways in the United States.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A crumbling hospital from the 1850s on Roosevelt Island.

Teddy Roosevelt’s famous “midnight ride to the presidency" started at this small lake high up in the Adirondacks.

It wouldn't be long after purchasing this farm, Brown would lead his siege on Harper's Ferry.

A natural gas leak provides a flickering flame beneath a waterfall.

A tiny one-room church built after one man's prayer for healing was answered.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

This institution pays tribute to an associate justice who protected civil rights and prosecuted Nazis.

An abandoned tuberculosis hospital moulders on into an uncertain future.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

An off the grid woodland retreat that harkens back to days long forgotten.

A collection of unique outdoor sculptures surounded by the beauty of nature.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

A quaint village in Western New York named after Alexander Hamilton's beloved sister-in-law.

This museum pays tribute to the largest group in the Iroquois Confederacy.

This collection honors the iconic, and proudly American lighter that just won't quit.