Olduvai Gorge, located in northern Tanzania, is one of the most important paleoanthropological sites in the world. Often referred to as the "Cradle of Mankind," it has yielded some of the earliest evidence of human ancestors. The gorge contains fossils dating back millions of years, including remains of early hominins like Homo habilis and Australopithecus. The site has also provided stone tools and other artefacts, offering key insights into human evolution and the development of early technology.