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

This stunning Connecticut mansion is actually just a one-room-deep hoax.

A former copper mine which became a truly unsuccessful prison.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

This tower commemorates the spot where George Washington hoisted the Grand Union flag.

What may be Boston's finest Art Deco building, located in the city's Financial District.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

One of the oldest baseball fields in continuous use has been hosting games since 1878.

Whimsical cookie-themed plaques mark the birthplace of the Fig Newton.

A short walk through the woods will take you to an unusual flat hill top, used by the Shakers for outdoor worship.

The last remaining 19th-century tenement from Boston's old West End neighborhood.

The oldest platform carousel built in the United States continues to delight children in Martha’s Vineyard.

Millions of numbers carved in glass represent the tattoos forced upon victims.

Dedicated to one of the darkest moments in Irish history.

The world's largest piece of copyrighted artwork.

One of the few remaining monuments dedicated to South Boston's Irish heritage.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

This beautiful architectural gem was the first waste treatment facility in Boston.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

The infamous Boston Mob ran rackets from an office here in the 1970s.

One of the largest public collection of historic armored and military vehicles in North America.

This wooly sculpture supposedly marks the birthplace of a famous nursery rhyme, or not.