The largest glacial erratic boulder on Cape Cod.

Solar powered Spectacle Island features all-green facilities.

A rock outcropping left by a glacier that made itself useful throughout the centuries.

This giant Massachusetts sycamore is said to hold the dubious distinction of being the "widest tree East of the Mississippi!"

The Atlantis of Cape Cod reemerges during the lowest of tides.

An elaborate, hidden model train in the Needham Town Forest.

Hut with supplies for shipwreck survivors.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

One man’s hobby is another man’s world of metal wonders.

This railroad tunnel was once the longest in Massachusetts.

Overgrown ruins of a turn of the century island fort that sees very few visitors.

The massive machine creates cracking displays of indoor lightning.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

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

Painstakingly built dioramas sit unnoticed in a Boston office building.

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

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

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

Beautiful steampunk ghosts of early Massachusetts.

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

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

Dim sum, served in a grand old theater.

An eccentric inventor's castle home with its own indoor weather system.

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