For 20 years, this whale skeleton has been slowly dripping oil on the floor of the museum where it hangs.

A coastal rock outcrop with mysterious inscriptions variously attributed to Native Americans, Portuguese, Phoenicians, Norse, and more.

This candy-colored storybook village originated as a 19th-century Methodist campground.

Impossibly life-like natural history models created out of glass by a father and son.

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

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

Resonating tubes make music from highway overpass.

This giant Boston statue of Mary is standing on a globe to show her power over the universe.

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

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

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

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

These whimsical works of art tell the story of the city's past and present.

It's not a typo, now say it five times fast!

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 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."

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

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

The bears may be gone, but their old cages can still be found.

The Mysterious Witch Bonney, a haunted statue in an old industrial city.

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

The massive machine creates cracking displays of indoor lightning.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

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