This video explores how ancient civilizations built things so advanced that even modern science cannot explain them. From ...

How do you carve, transport, and erect a single block statue weighing over 1,000 tons—out of composite quartzite, flint, or ...

The ancient Inca built a complex system of roads that span some 20,000 miles and range in altitude from sea level to 14,000 feet, all without the benefit of special tools or even a formal writing ...