A journey for searching my losing soul

Going to Beijing tomorrow. It's gonna be a quick and rush trip but finally it become realised.

Since I had such a plan on Summer 2009 but this trip never comes true until now! I'll take to train to BJ, which would take 23.5 hours!! :D (But I'll take a flight when I return, as my time are so limit)

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Any recommendation for must visit but unknown places?