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

This railroad tunnel was once the longest in Massachusetts.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

The massive machine creates cracking displays of indoor lightning.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Beautiful steampunk ghosts of early Massachusetts.

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

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

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

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

A historic bridge with a lovely acoustic anomaly.

No one really knows how these old hobby horses got here, but the herd keeps growing.

35,000 grape hyacinths flow like water down a garden hill.

Over fifty whirling pools left by the glacial age.

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

One of the now-less-hidden floral gems of the "Emerald Necklace."

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

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

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

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

Museum dedicated to awful artwork.