The world’s largest digital waste dump has become a site where organized criminals hack into confidential government data.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

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

Where NASA's satellites and rovers phone home.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

The highest bridge in America was built for an almost unnervingly small amount of money.

There are eight natural springs around town, each with a slightly different taste.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

This series of rope-style bridges brings visitors into a jungle layer that is usually reserved for birds and monkeys.

Where thousands of slaves passed through the "Door of No Return."

Home to more than 13,000 pieces of war memorabilia and military equipment.

A thriving artist's wonderland located just 6 kilometers from Korea's DMZ.

Secret North Korean passage discovered below the world's most dangerous border.

This former monument to an invented Iraqi victory was turned into a military camp during the subsequent invasion.

A giant bisected onion dome remembers the Iraqis who died in the Iran-Iraq War.

This tree was extinct for a thousand years before sprouting again from a 2,000-year-old seed.

A massive, heart-shaped, wind-carved crater in the middle of the Israeli desert.