This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

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

This abandoned factory on the Hudson River once churned out a million bricks a week.

This mouldering abandoned mental hospital was once a center for progressive healing.

This derelict building used to house infirm Freemasons, their widows, and orphans.

This giant rock arrived at this quiet park thousands of years ago on the back of a massive glacier.

A drawbridge named for a potentially intersex Polish national who fought alongside George Washington during the American Revolution, and an example of "Pulaski Red".

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

One-time largest man-made structure in the world will be a park in 30 years.

This simple Manhattan salt house is artfully shaped... well, like a giant granule of salt.

You must take the A train... to the last active cemetery in Manhattan.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

The home of aviation trailblazers, in a remote corner of the big city.

This forlorn park is the result of a failed investment turned tax dodge.

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

The largest known open fault in the United States is basically a giant natural refrigerator.

The remains of what was once the world's steepest passenger funicular.

A Gothic-style abode built to accommodate the church's three resident peacocks.

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

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

A town trapped in time - 1958 to be exact.

Final resting place of two dozen New York City harbor ships.

The highest point on the island known for buildings that touch the sky.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.