What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

This abandoned radar station from the Cold War era now only broadcasts a seriously ominous air of isolation.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

Founded by the famed children's book artist, this museum spreads an appreciation of the arts through picture books.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

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

This supermarket is suspended 25 feet above an interstate highway.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

Around 100 sculptures from artists all over the world decorate the hiking trails surrounding this locale.

The Cape Cod house that whaling built.

A Circus legend leaves an unexpected endowment.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

The summer home and later final residence of acclaimed American sculptor Augustus Saint-Gaudens.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

Even Henry David Thoreau found this glacial pothole irresistible.

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

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

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

The largest collection of historic military firearms in the United States.

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

The largest glacial erratic boulder on Cape Cod.