This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Radical Bookstore and Community Space.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

This hidden labyrinth offers walkers some brief peace of mind.

Three prestigious academic collections come together to create a world-class natural history museum.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

One of the last remaining movie theatres in the country that features a rear-projection system.

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

The macabre paintings created by famous suicide proponent Jack Kevorkian, or "Dr. Death."

World's first "penitentiary," meant to be humane, drove men insane.

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

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

A former copper mine which became a truly unsuccessful prison.

This railroad tunnel was once the longest in Massachusetts.

Scene of the grisly murder of two Norwegian women in 1873.

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

Even Henry David Thoreau found this glacial pothole irresistible.

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

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

This cavernous abandoned marble mine is popular with ice skaters in the winter.

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