Old Faithful geyser in Yellostone National Park in B&W.
It was a cold day and as you can see, Lake Michigan was completely iced over. The clouds were thin and wispy but present enough to create interest in the sky. I learned something about the City this day, if you don't think there are interesting things to see, keep walking anyway!
The ceiling which acts as a skylight filters light into the main gathering space. But it was enhanced by a single cloud of fog that gathered itself ONLY around the museum on this day and no where else in Milwaukee.