The Cambrian-age Tonto Group is a set of rocks famous for holding clues to the burst of new life that reshaped Earth 500 ...

The Great Pyramid Grotto has long intrigued archaeologists and historians. Could this hidden chamber actually pre-date the known dynastic periods of Egypt? This video dives into the evidence and ...

Discover the massive pyramid rumored to be hidden in the Peruvian Amazon Rain Forest, potentially rising three times higher ...

Skip the massive crowds to explore this secluded and historic trail at the Grand Canyon. The views are simply spectacular!

Hells Canyon might be deeper than the Grand Canyon, but it's barely 2 million years old, according to a new study.

GRAND CANYON NATIONAL PARK — Tourists peer ... Sometimes that job requires flying in a helicopter to the bottom of the Canyon to ensure the lights remain on at Phantom Ranch.

A cable hardly wider than my thumb stretched 3,200 feet from where I stood to a tower on the other side of Quartermaster Canyon. This 500-foot-deep fissure was home to the last item on my Grand Canyon ...

In the shadow of the San Francisco Peaks, nestled along South Milton Road in Flagstaff, sits a breakfast sanctuary so ...

Just a few weeks earlier, a 41-year-old man was found dead near the bottom of the Grand Canyon, where he spent the night. Bystanders and park service personnel found his body on the Bright Angel ...