In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A beautiful geyser under environmental threat.

One person's lost luggage is another person's treasure.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The first declared National Monument in the United States.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

An enormous, inside-out glass globe built in 1935.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

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.

This historic folk museum celebrates the attention to detail that makes America great.

The quaint little Vermont town played a quaint little Connecticut town in Tim Burton's "Beetlejuice."

One car at a time please.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

This New England covered bridge is home to the tale of a jilted lover known to haunt the area.