From an ancient Egyptian hoax to a mysterious disappearances and Cold War history, here are 10 bizarre facts you probably ...

“Leave it as it is,” declared U.S. President Teddy Roosevelt after a 1903 sojourn at the Grand Canyon. “You cannot improve on it. The ages have been at work on it, and man can only mar it.” More than ...

The re-opening of a uranium mine near the Grand Canyon has the Navajo Nation, and now Arizona's attorney general, questioning its safety. Mining for uranium in the U.S. is picking up. It's used in ...

If a hike to the bottom of the Grand Canyon isn't your thing, try seeing it from a glass-bottom overlook instead. The Grand Canyon Skywalk offers the chance to see the canyon's western end from a ...

If a hike to the bottom of the Grand Canyon isn't your thing, try seeing it from a glass-bottom overlook instead. The Grand Canyon Skywalk offers the chance to see the canyon's western end from a ...

FLAGSTAFF, Ariz. — Uranium mining in the U.S. is picking up after the nuclear fuel’s price hit a 16-year high earlier this year. But now that a mine near the Grand Canyon is producing ore, Native ...