The Architecture I section was added tonight. It shows pictures of several modern buildings in European cities. Focusing the attention on the front of the buildings reveals repeating structures of glass, steel and concrete, patterns of modernism, surely hard to keep clean. Mirroring blue skies can make the buildings somehow appear more friendly, grey skies often bring out the worst sides of modern architecture. On some shots the blue, often tinted windows appear almost unreal on the concrete, compared to the lighter blue of the sky.