🔍Satellite data and on-site investigations reveal the true extent and complexity of the Great Wall.
🏰The Great Wall was more than just a barrier; it was a sophisticated military system with strategic fortresses and traps.
🌍The Great Wall stretches for over 5,500 miles, far surpassing previous estimations.
🧱The construction of the Great Wall involved meticulous engineering and precise brickwork.
🔑Hidden tunnels and secret doors provided the Ming dynasty with surprise attack capabilities.