There are two roads to climb Jianmenguan, one of which is the Bird Road, which is relatively easy. But it was really not easy to open such a road in ancient times, along the cliff. Some places are still relatively steep.
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There are two roads to climb Jianmenguan, one of which is the Bird Road, which is relatively easy. But it was really not easy to open such a road in ancient times, along the cliff. Some places are still relatively steep.