China: 4300-year-old secret ‘tactical defence’ tunnels unearthed, Believed to serve dual purposes, these ancient tunnels must have been used both as a transportation network and a means of defence and offence. Featuring arched ceilings reminiscent of Longshan period cave dwellings, the
New discoveries from the ruins of a gigantic, prehistoric stone city in the north of China may unveil how an early civilization emerged along the Yellow River more than 4,000 years ago.
New discoveries from the ruins of a gigantic, prehistoric stone city in the north of China may unveil how an early civilization emerged along the Yellow River more than 4,000 years ago.