With a stunning addition by architect Renzo Piano -- filled with natural light and beautifully detailed-- the Art Institute of Chicago becomes the second-largest art museum in America. A pedestrian bridge as straight as a Chicago street connects the art museum to Millennium Park and offers great views. Take a photo tour here.

Mr. Lifson blogs at Hello Beautiful!
Paul Klein: The Opening of the Fall Art Season; Chicago Art is Kicking
It's going to be fun watching the MCA, the runt of Chicago's 'big' museums, come from behind to become a trendsetting, innovative role model for the 21st Century museum.