它是世界上最长的城墙，而且是世界奇观之一 6000米长，6~7米高。4~5米宽。完全是靠手工用石头造成的。 现在已成了名胜。每年吸引许多游客来参观 经过岁月的洗礼，它也需要我们的重建。 It is the world's longest wall, and is one of the wonders of the world 6000 meters long, 6-7 meters high. 4 ~ 5 meters wide. The sheer manual stone. Now has become places. Every year attracts many tourists to visit Through the years, it also needs the baptism of us.