Thousands of years ago, people built things so advanced that even today’s experts can’t explain how. These ancient creations weren’t lucky guesses-they were brilliant, precise, and way ahead of their ...

At one of the most treacherous and least restored stretches of China’s Great Wall, a line of pack mules halted upon emerging from the gloom of a dense forest draped in mist and dew. Laden with 150 kg ...

An analysis of more than 3 million years of human evolution shows that communication and technology developed in lockstep. As ancient humans came up with more advanced stone tools and other ...