Shanghai Saturday.  Walking around exploring and trying to get lost, which is always the best way to discover a new city, I think.  Shanghai is vast, though, and my walk today took me all the way up the Nanjing Road from my apartment to the Bund, which I think is about 3 miles.  The beauty of Shanghai is in the architecture, the lovely images of horses everywhere to celebrate the upcoming New Year, the flowers.  The part that is difficult, and what is the filter to all the beautiful images, is the polluted air, which leaves a gray haze over everything.  It is hard to describe, but feels like the first time I saw Lake Michigan.  It looked like an ocean, so one of my senses was telling me that it was an ocean.  But there was no salty smell, no sting of spray on your face.  So my other senses registered it as non- ocean.  This is like that:  the hazy cloudy sky looks like fog.  Like rain might be coming. But there is no humidity, no sense of wet in the air, no other sense says: "rain:"  It is disconcerting and unsettling.