High Rise

I drove up to Rockland county today to go to the first day of a two-day astronomy conference.  I forgot to take a blog picture while at the conference - I was too busy looking at all the stuff, and talking to everyone I met as I wandered around.  So in desperation, on the way home, I did my shooting-out-of-the-car-window trick.  As I went by Co-Op city, I saw these patterns in one of the high rise buildings that make  up Co-Op city.  I was attracted to the repetitive design.  It looks much cooler if you click on it and see the design up close.