At the supposed instruction of Ben Franklin and Socrates, a Spiritualist believer intended to birth a mechanical messiah here.

The proud hometown of an American legend has honored their favorite son with what seems to be a gravestone.

One of the largest public collection of historic armored and military vehicles in North America.

Series of storm drains connected to a dark urban legend.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

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

An enormous overgrown greenhouse teeming with graffiti and wildlife.

The remains of a century-old mansion that met a fiery demise years after it was deserted.

A bronze plaque at an intersection in Hoboken marks the place where the game of baseball first took shape.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

These small stands sell Malian snacks to worshippers and passersby after Friday prayers in Harlem.

Glacial erratic or man-made dolmen? It probably wasn't druids.

This last stalwart of the now-forgotten feminist restaurant movement has been serving food in an activist atmosphere since 1977.

This beach-side arcade is believed to be the oldest penny arcade in America.

A quirky assortment of musical marvels from around the world.

This sculpture commemorates the first instance of an American president pardoning a turkey.

Now home to hardy plants, these sand and gravel dunes once held back a massive prehistoric lake.

This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

New London, Connecticut still holds a grudge against its hometown son who turned traitor and burned the city.

This backwater graveyard in the Hamptons became a trendy burial spot and posthumous status symbol for famous artists.

This picturesque Victorian ghost town was once a thriving mill community.

This museum holds a fully-functional replica of the "Turtle," the first American submarine ever built.

Rumors of the occult haunt this upscale 1920s hotel.