1. Sadly, Beijing is so air polluted these day.
2. To order a taxi from cell phone app is getting very popular, that's why getting a taxi on the streets seems mission impossible.
3. I chose to stay in a traditional 'siheyuan' hostel for the first couple of days to experience what was the old Beijing life like. If you don't mind the courtyard being noisy in the morning, then go explore it a little bit.
4. I have the impression that Beijingers are more friendly and hospitable than we Shanghainese.
5. Entrance of the Olympic park where the 'Bird nest' and 'Water cube' is right next to one of the metro exits. However, the pedicab drivers at the other exits would tell you that the entrance is still a few kilometers away, it's way too far by walking. That was a good trick.
6. I still remember the days that Beijing has only 2 or 3 metro lines. But it's 15 now, how fascinating! Moving around with metros are the No.1 choice.
7. Not sure if it's the time or what, 798 art zone doesn't have many visitors at all.
8. I was so surprised that Sanlitun - the famous bar street was turned into a window-shopping-pole-dancing street, you don't even have to step in to watch. That doesn't happen in Shanghai, I mean you'll have to pay to see stuff like that in Shanghai. There are quite some real bars too where you can drink and talk on the parallel street.