Civil aircrafts may not enter the fifth ring road of Beijing.
Inside the red circle marked in the picture is the No-fly zone. I also marked Beijing Capital int’l airport. It is because Chinese paramount leaders lives right next to Tian’anmen.
If the aircraft entered the fifth ring road, the Civil Aviation Administration of China (CAAC) will give ticket to this pilot. If an aircraft gets close to 3rd ring road, Chinese military aircraft will shoot it down.
I discovered that when IF pilots are approaching ZBAA or ZBAD, they are using the wrong air route.
For Washington DC, the no-fly zone is around the white house. Please see below for pictures. Thank you.