The petroleum industry brings you the joys of hydrocarbons and largest collection of antique oil rigs in the world.

Decaying military base deactivated in the 70s is now visited by urban explorers and military enthusiasts.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

You can climb to the summit of Black Mountain, as long as you sign the waiver.

A Civil War Museum with some notable medical antiques.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

This 150 foot seven-tiered cascading waterfall is one of the hidden gems of the White Mountains.

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.

A short nature trail winds through the greatest works of poet Robert Frost.

Even Henry David Thoreau found this glacial pothole irresistible.

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.

The 100-year-old public collection of a New Hampshire dentist that contains taxidermy, Native American artifacts, and a pair of mummy hands.

A curious blend of taxidermy, antique tools, creationism, and a purported antediluvian rock.

Antique gaffe kept in the basement of a small Vermont natural history museum.

Taxonomy experiment known for quirky collections.

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

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

A historic coal mine that doubles as a museum and tourist attraction.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.