This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

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

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

Who knew the Devil's domain was a hot spot for tubing?

The only certified Trappist brewery outside of Europe hides in the central Massachusetts hills.

More than 200 unconventional musical instruments that anyone can play.

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

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

Journey through vintage Americana inside this small Massachusetts shop.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

A rock outcropping left by a glacier that made itself useful throughout the centuries.

A former copper mine which became a truly unsuccessful prison.

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

A remnant of the 19th-century dream to discourage people from drinking booze by offering them water.

Small shop offering mail-order rare and exotic plants.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

This giant Massachusetts sycamore is said to hold the dubious distinction of being the "widest tree East of the Mississippi!"

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

This exhibit is one of the largest and most well-preserved collections of Jurassic-era trackways in the United States.

The highest point in Connecticut was incorrectly memorialized before surveyors discovered the actual spot.

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