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Copyright © 2024 CGTN. 京ICP备20000184号
Disinformation report hotline: 010-85061466
Over the years, only the outer face of Pingyao's ancient city wall has been covered with bricks. The inside is simply rammed earth. It was designed to be a living, breathing structure. The weather in Pingyao is relatively dry, and a brick wall would have restricted the flow of fresh air for people to breathe.