What it is: An ancient stone circle in the Egyptian desert ... A 2,400-year-old gold sculpture of a warrior heading into battle What it tells us about the past: Nabta Playa, which is 2,000 years ...

A warrior's headdress of prized red-orange ... cylindrical hats or topknots of red scoria, another volcanic stone. But first a statue had to be moved over one of the roads that led to the island ...