[Multiple pics] Amazing clouds that you can't see normally

God gives us the vision of cotton candy... Friends, when you are free, please look up at the sky, there are lovely cotton candies. Speaking of China where pollution is getting more and more serious, maybe all we can see above is just a pitch darkness when we look up our heads. But there must be some good weather days, right? Don't forget to take pictures with your mobile phone or digital camera when you see it, they might be once-in-a-lifetime sights like the ones below.