The world’s largest underground marble quarry is hiding in Vermont.

The Scottish Reformation leader's grave was paved over and is now a parking lot.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.

The oldest still-existing mosque in the United States sits in a remote prairie in North Dakota.

A picture-perfect town, perfect for blowing up.

The largest man-made crater in the U.S. marks the spot where we once tested mining with nukes.

Ever wanted to can Spam?

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

Experience a charming 1930's version of "infotainment."

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

The humble beginnings of the man known for his lavish "champagne" music.

The folks at the Devil's Rope Museum want you to get hooked on barbed wire history.

The site of Billy the Kid’s most famous escape and the end to the Lincoln County War.

One man's quest to save his town with a trail of record-breaking sculptures.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A unique attraction and museum dedicated to exploring iconic roadside structures.

A museum documents the development of the invention that tamed the Wild West.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

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

An artificial crater field that trained astronauts for lunar exploration.

Home to the deepest rift anywhere on Earth.

A clear blue swimming hole with hidden caves, still unexplored.

A museum dedicated to the history and art of staying clean.