The pyramids at Giza are usually described as the ultimate building project, millions of blocks stacked skyward by sheer human effort. A growing fringe of researchers and online theorists is now ...

A researcher claims the Great Pyramids may predate ancient Egypt and could be the work of a lost civilization with advanced ...

There's never a shortage of weird and wonderful historical theories that leave us scratching our heads. Pyramids not built by humans? Been there. Hidden chapter in human evolution? Done that. But ...