When we had dinner in the evening, we avoided a rainstorm. We took Metro Line 2 to Yongning Gate. We saw Yongning Gate at exit D1 when we turned a corner. Because it had passed 7 p.m., the whole city wall could only enter and leave the South gate. When we came up to the wall, the wind was very strong and the wall was very wide. We stood on the wall to feel the long river of history. Under the wall, there were modern cars and buses.