It's pretty normal in our lives to take somethings granted, in my case as a person living in Costa Rica, quality of air is one of them. I didn't remember the last time I see the sky back home to check the color, but here in Beijing is the first thing I do then I reach the street.
Fortunately for me, yesterday was another APEC Blue Sky in Beijing.
I started my day visiting Zhongshan_Park which is a flower park with some pavilion and trail decorated.
Next to the part is the main entry to the Forbidden City which was the resident of China emperors and have an enormous quantity of squares and palaces, takes me about 3 hours walking across, but it's worth the effort.