As I stood facing the armed boy, I couldn't help but feel a sense of awe surrounding the centuries-old monument. There was a certain mysticism in the air, as if the Great Wall held secrets of the past and present.

But my attention was quickly drawn back to the situation at hand. I cautiously approached the boy and attempted to communicate with him, using hand gestures and broken Mandarin. To my surprise, he was able to understand me and allowed me to pass through.

As I continued along the Great Wall towards the Beijing Communication Tower Factory, I couldn't help but marvel at the engineering feat before me. The wall stretches over 13,000 miles and is made up of various materials, including brick, stone, and earth.

I eventually arrived at the bustling factory, where workers were busy constructing and testing large communication towers. It was amazing to see the complex process firsthand, from the intricate wiring to the careful placement of each tower component.

Throughout my travels in Beijing, the Great Wall and the Communication Tower Factory stood out as true feats of human ingenuity and innovation. It was an experience I will never forget, and I can't wait to return and explore more of this fascinating part of the world.