A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A distillery built on (and above!) mobster Dutch Schultz's Prohibition-era underground moonshine business.

A fire station-turned-church-turned-museum dedicated to the work of seminal light artist Dan Flavin.

An unassuming nature trail winds through dozens of tiny houses built for the wee people.

Row, row, row your pumpkin quickly down the stream.

The ghost town that was one of New Hampshire's first settlements now exists as a park detailing its history.

A very big rock just plopped down in the New England woods.

One New Hampshire alleyway has become home to a public gallery of feline art.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

America's oldest archaeological site or a muddled case of wishful thinking.

Even Henry David Thoreau found this glacial pothole irresistible.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

Driftwood dinosaurs lurk within trees covered in a rainbow array of avian abodes.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.