Scientists discovered four giant dinosaur footprints in North Dakota that may form the first known trackway made by an adult T. rex, offering rare clues about how it moved.

Every December, the Star of Bethlehem appears on cards, trees, and nativity scenes. But do we actually have the date all wrong? According to an astronomer who looked into the original story, one big clue points to a very different day...and it’s nowhere near December 25.

Explore the creepiest unsolved mysteries from America’s national parks, including disappearances, ancient ruins, strange geological puzzles, unidentified wrecks, and other baffling stories tied to unforgettable travel destinations.

Deep inside Tennessee’s Devilstep Hollow Cave, ancient Indigenous petroglyphs reveal a sophisticated world of art, symbolism, ritual, and imagination.

Chris McCandless was a bright college graduate from a comfortable American family, with the kind of future that seemed wide open. Then, at 22, he gave away thousands of dollars, cut contact with his family, and disappeared onto the road under a new name. Two years later, hunters found him passed away inside an abandoned bus deep in the Alaskan wilderness. How did his life change so completely, and what actually happened during the final months that turned his strange journey into the story of the film Into the Wild?