Historical Diagram: Piccadilly Circus Tube Station by Renzo Picasso, 1929
We all know that I love a good cutaway diagram, and this example – drawn by Italian architect and urban designer, Renzo Picasso (no relation) – is just superb. Drawn in 1929, coinciding with the opening of Charles Holden’s sub-surface circular booking hall which replaced the original 1906 above-ground Leslie Green-designed station building. The unusual perspective, halfway between the platform level and the (invisible) roads above, permits a wonderful level of clarity in the drawing. […]