The schoolhouse where Jesse Merwin, the inspiration for the "The Legend of Sleepy Hollow" character, once taught.

A perfect replica of the beloved show's first set.

Why have you never heard of the second most popular tourist site in New York?

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

Rummage through this sunken ship, but leave your scuba gear at home.

An unrealized dream to wirelessly electrify the entire Earth.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

Plot your trip through the city on the sidewalk.

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

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

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

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

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

Less a museum than a bizarre fantasy world created by artists and engineers.

This 25-foot-tall gorilla made his way from the Wildwood boardwalk to a Pine Barrens gas station and deli.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

All that remains of a gigantic earth-moving machine.

At the center of this cemetery stands a 2,000-year-old burial mound of the Adena culture.

This tiny museum kept in a B&B laundry room holds the death mask of notorious bank robber Pretty Boy Floyd.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

Where a brain, a beauty, a jock, a rebel, and a recluse met one Saturday and changed their lives forever.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.