The Connecticut village named for its subterranean thunder.

A seasonal movie monster museum featuring wax creations by a relative of one of the original Universal Studios monsters.

A wunderkammer hidden on the top floor of the Hartford statehouse.

Books bound in human skin and H. P. Lovecraft's letters are among a few of the treasures this library has to offer.

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

A former copper mine which became a truly unsuccessful prison.

As state high-points-by-elevation go this spot is one of the lowest, but for years it was also the hardest to climb.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

This roadside attraction attracts kids with dinosaurs before blindsiding them with geology.

One philanthropist's extensive collection of knick-knacks and curiosities is now a public museum of oddity.

Books you don’t need in a place you can’t find.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

This rare symbol of Eastern philosophy in the West has been created over years of painstaking construction by the local community.

This decrepit abandoned building is made all the more eerie by its dark history.

A steampunk wonderland that preserves America's history of industrial innovation.

An 80-year-old house built out of newspapers.

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

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

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

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

A Medieval Water Tower in the Heart of Massachusetts.

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

Around 100 sculptures from artists all over the world decorate the hiking trails surrounding this locale.

Friction between grains of sand cause a curious "singing" sound.