Stumps of an Ice Age forest, visible only at low tide.

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

The world's largest rotating world.

A town wears its heart on the sleeve of a smiling girl, arms flung wide open in a cheerful greeting for all who encounter her.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

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

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

A historic custom house with ties to George Washington is now a shrine to local nautical history.

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

Welcome sign announcing Haverhill, MA, as the birthplace of horror rocker/artist/director Rob Zombie.

America's oldest archaeological site or a muddled case of wishful thinking.

Former abode of notable poet, complete with literary references and stories of ghosts.

This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”

Former laboratory of radical psychiatrist Wilhelm Reich.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.