Alphatecture brilliantly executed by Peter Defty. He is a professional photographer based near Leeds, in the UK, and takes these photos all over the world. They remind you to look up once and a while. maybeitsgreat: ALPHATECTURE by Peter Defty, UK
The daily sketches of Guy Denning. Particularly like the centralisation of the image here. Note: Play around with contrast and how darker colours don't need to be confined to the centre of the page, they can be inverted.