The wreckage of a World War II bomber is hidden high in the Colorado wilderness.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

An eatery for UFO seekers on the Extraterrestrial Highway.

Mysterious meeting place for UFO hunters near Area 51.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Up-close opportunities to see working birds of prey.

The largest source of fossilized insects anywhere.

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

Two creeks flow out of either end of this canyon in opposite directions.

This super steep hike ascends 2,000 feet in less than a mile.

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

Despite its name, this route in southern Utah offers a heavenly day trip.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

Hundreds of mummies in a silent room, some with eerily pained expressions preserved on their faces.

This well held a sacred source of water supposedly unleashed from the barren rocks by a wizard-like archbishop.

An Archaeological Wonder of Peru, and the largest stone ruin site in the New World.

These giant mummies are set ominously into a Peruvian cliffside and topped with real human skulls.

One of the world's tallest waterfalls wasn't revealed to the world at large until 2006.

The world's fifth tallest waterfall is a spectacular silver chute of water that cuts through the cloud forest in northern Peru.

A paradisical gorge with rapids, waterfalls, and wildlife whose raw beauty is the stuff of CGI movies.

The highest tropical mountain range in the world is in Central Peru, home to a vast array of exotic and quirky plants and animals.