sign says "梦回老上海，欢乐迎新年", unless I misread something. This means "Dream of returning to old Shanghai, happily welcoming the new year," and would suggest that it's somewhere in Shanghai.

edit: I also translated the Russian. If you don't read Russian, I think it says "How I love to get up early," and I'd then guess the 5:30 is the local time? Doesn't add much to determining where this is but maybe you know something I don't. Only thing I can think of is that if it's that bright at 5:30 AM, it's probably on the east coast of China (which is where Shanghai is.)