Modern mansion on Lindell between Union and the Musee de Histoire in Forest park. Look closely at the roof- little baby squishy mansards perched on each level.
Why was I traveling Lindell? I went to Vatican Splendors with Kay's 4th grade class. It was wonderful; would have been better if I could have looked at all of the fabulous material without being interrupted by a bunch of 9 year olds.
Warning- they are HARD CORE at Vatican Splendors about cameras (none), cell phones (totally off), and food/drink. I had to excuse myself when Mimi demanded her raisins. Still, highly recommended.