Machines Time Forgot: Unsorted (2003)

Ended

History is littered with mysterious achievements, feats that cannot be explained by the known technology of the time. This series tackles four of these exploits, glimpsed through centuries-old literature and art, which were miraculously advanced for their time. Now, historians, technicians and artisans have come together to try to equal their forebears' genius and expertise and understand how these major achievements came about.