This is just one of the parkour videos posted on 56minus1.com. This mediocre montage was filmed in Beijing, however, home-grown free-runners appear to be doing their thing across China.
I was less than impressed with all of the videos. Personally, I was much more interested in the Chinese translation of parkour - 跑酷. Sounding similar to the original French word, the pinyin for these two characters is "pao ku." The word could be directly translated back into English as "run cool."