Ancient humans had the natural urge to document the world in which they lived, a fact that is evident in the cave paintings and carvings that still exist today. Why do rock paintings from various sites around the world all seem to depict the same things? Did the peoples of the prehistoric world have contact with each another? Is it possible that some were transported to far-flung locations in what our ancestors could only have described as "flying chariots"? Erich von D