The eccentric mansion of one of the most popular horror authors of modern times.

One of the earliest bowling lanes in the U.S. doubled as a sewing school during a time when women had little job opportunity.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

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

An unrealized dream to wirelessly electrify the entire Earth.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

Astonishing collection of helmets, scientific instruments, and medical models.

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.

A man used his Civil War-era fortune to build this sanctuary in memory of his wife.

This sprawling woodland estate was the brainchild of iconic American industrial designer Russel Wright.

A CT scan revealed the identity of this 3,000-year-old mummy that everyone erroneously thought was female.

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

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.

Reforestation in action is the main attraction in this abandoned quarry.

This abandoned ironworks was once the most important military supplier in America.

A monument to the Mohawk people stands along an old Native American trade route.

This high-perched pachyderm marks the memory of not one, but two elephants gunned down in small New England towns.

Protecting the future of some of the rarest and most misunderstood mammals of North America.

The kind of mixed-up place that drives archaeologists crazy.

The graves of a Connecticut family thought to have been plagued by a vampire.

New London, Connecticut still holds a grudge against its hometown son who turned traitor and burned the city.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.