The site of the first "historically true" UFO encounter in the U.S.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

It's not a typo, now say it five times fast!

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 railroad tunnel was once the longest in Massachusetts.

Ice cream stand, snack bar, and time capsule of milk conveyance.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Over fifty whirling pools left by the glacial age.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

An eccentric inventor's castle home with its own indoor weather system.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

An enormous, inside-out glass globe built in 1935.

What appears to be an act of fruit vandalism is actually a cultural statement.

This large boulder was used as a lookout point by Revolutionary War militiamen.

Journey inside the bowels of this sperm whale sculpture.

After decades of neglect, a brutalist icon is getting new life as an eco-friendly hotel.

A once-booming railroad left abandoned next to the Quinnipiac River marshes now intersects with a hiking trail.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

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

Memorial to one of the most fatal fires in both circus and U.S. history.

The Connecticut village named for its subterranean thunder.