After walking to Zhongtianmen, take a rest. After enough rest, continue climbing up. All the way up, you can see Nantianmen far away. When you go to Nantianmen Tower, take photos and keep walking up. Because Nantianmen Tower is not very big, there is no rest place, so you have to rest enough in Zhongtianmen and then climb to Nantianmen. After arriving at Nantianmen, we crossed the gate and went up for a few minutes to reach the flat rest place.