On a side street near the interstate is the building where the famous anarchist once owned an ice cream parlor.

A spooky and decrepit mental health facility is slowly being replaced with newer digs.

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

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

The homestead of American patriot John Adams.

At the supposed instruction of Ben Franklin and Socrates, a Spiritualist believer intended to birth a mechanical messiah here.

A cave dug by a man directed by ghosts to find pirate treasure.

The oldest surviving wood-frame building in North America is still in the family.

Trash escaped from a landfill to fill beaches with all kinds of treasure.

The home of a famed utopian science fiction author has been preserved long after his predicted future in the year 2000.

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

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

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

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

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

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

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

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

Robots, lasers, and whoopee cushions, oh my!

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

Jule Körner's house full of bizarre architectural details.

A cave's rare beauty held a cavernous secret hidden underground.

An unrealized dream to wirelessly electrify the entire Earth.