From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

This small shop walked so America could run on Dunkin'.

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.

The world’s largest underground marble quarry is hiding in Vermont.

Nature and religion are reunited at this unconventional church in the forest.

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

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

This small-town Connecticut restaurant gives each diner a free book from its vast library.

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

The largest freshwater lake in the Florida Keys.

This tiny patch of arid sand sits in one of the greenest states in the United States.

A showcase of geologic history is home to one of the largest collection of lunar meteorites on Earth.

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.

Colorful clay cliffs tower over an unofficial nudist beach on Martha's Vineyard.

Hidden behind a Target are pillows of cooled lava that formed at the bottom of a deep lake in the Mesozoic Era.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Sand dunes from a glacial lake are preserved in this woodland park.

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

Inside this old mill is a collection of images that will always remain frozen in time.

Journey through various trails to discover a land before time along the Chazy Fossil Reef.

This series of landscape dioramas tell the story of New England forestry in exacting miniature detail.

This New England drive-in was built to straddle the border between two states.

Over fifty whirling pools left by the glacial age.