Soehne & Partner: QR code hotel
This intriguing project from Dubai appears to still be in the planning stages, but if realized, it would be an incredible sight. Soehne & Partner released images of the design, showing a large, upscale hotel entirely covered in QR codes. It's unclear what the codes scan to, or if they are purely a design element, but the computer-generated images in themselves are very impressive and definitely worth a look.
(Image sourced from http://milimet.com/2010/10/code-unique-hotel-dubai-images-information.html.)