Display that gathers the basic elements of the universe in one convenient location.

If astronomy had a ghost, it would look like this observatory.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

A monument marks the beginning of the longest north-south road in the United States.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

Explore the dark underground corridors of this graffiti-covered former military fortification.

A roadside park in eastern Maine first marked the halfway point between the equator and North Pole with a brass pin in 1896.

Every plane, auto, and bicycle in this collection is kept in working order and are regularly demonstrated to the public.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

This tiny patch of arid sand sits in one of the greenest states in the United States.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

This 19th century granite fortification is one of the most well preserved forts in New England.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

Steam engines and conveyor belts are remnants of a genius system left in the middle of the Maine woods.

This Maine bridge may be the last wire-supported bridge of its type in the world.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

One of the few brewers in the U.S. experimenting with hop-free beers.

A very big rock just plopped down in the New England woods.

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.

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

Maybe the only missile installed in a public park, this Cold War leftover was one of the first to carry a nuclear warhead.

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

This modern medieval weapon of war was built to toss pumpkins.