AEG Turbinenfabrik

Peter Behrens's 1910 AEG Turbinenfabrik, one of the most important milestone buildings in modern architecture, is just outside central Berlin.  It is thankfully not a tourist sight.  I certainly couldn't miss the chance of seeing it as soon as I figured out its address and how to get there.  The only regret I have is that I didn't get to see the interior of the building.