The Great Wall -

: An estimated one million workers, including soldiers and convicts, died during construction. 🎨 Educational and Creative Ideas The Great Wall - UNESCO World Heritage Centre

: Built to guard against nomadic invasions from the north, like the Mongols. Trade Control : Served as a checkpoint for the Silk Road . Timeline : The Great Wall

: Features watchtowers for signaling (smoke/fire) and beacon towers for communication. : An estimated one million workers, including soldiers