This abandoned amusement park was built on a site with a dark history.

Abandoned concert venue legendary for its rock counterculture.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A bit of retro transportation flair preserved in the world's largest department store.

Lie in a hammock where George Washington stood.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

During the holidays, a vintage subway train whisks New Yorkers back in time.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

One of the last Jazz Age "Wonder Theaters" in New York City.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

A very classy 1920s-era bar right in Grand Central Station.

The "Seinfeld" diner.