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

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

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

Six peaceful acres in a residential neighborhood dedicated to art and peace.

The first and only carousel with a lineup entirely of insects.

Legend has it the mill owner's daughter, Mary Musgrove, helped a Patriot soldier hide behind these falls.

The record holder for the world’s largest peach.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

The remains of the furnace and iron works that produced the massive Hudson River Chain still stand in the woods of New York.

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

The highest point in New Jersey is marked by a massive, if simply named, obelisk.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

100 massive sculptures in the Hudson River Valley.

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