For millennia, ancient civilizations have left us clues about the importance of living in harmony with nature. Despite the warnings etched in stone tablets, whispered through sacred texts, and painted ...

Explore the lesser-known Arizona canyon, Canyon de Chelly, a natural wonder with mesmerizing scenery and rich history.

Cliff-rappelling scientists uncovered a crossbow bolt, part of a slingshot and 25 shoes in ancient vulture nesting sites ...

In 1889, while searching for stray cattle in southwestern Colorado, rancher Richard Wetherill and his four younger brothers stumbled across ancient ruins in the cliffs of a high plateau known as Mesa ...