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

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

A free display of artistic lifesize dinosaur sculptures in a backyard garden.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

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.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

This once-private estate is now a dreamy, meditative garden that's open to the public.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

An abandoned 146-acre summer resort slowly being reclaimed by nature.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

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

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

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

This enormous abandoned factory is now a makeshift graffiti gallery.

This natural rock "church" might not be a proper chapel but that doesn't mean it's not beautiful.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

This whimsically unique butterfly farm focuses solely on creating habitats for the gentle insects.

A famed data visualizer's personal sculpture garden is a landscape of modern and megalithic wonders.

The remnants of a 19th-century ironmaking complex hidden in the woods of Connecticut.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

The remains of a century-old mansion that met a fiery demise years after it was deserted.

Home of Philip Johnson, one of the 20th century's most influential architects.

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