In an idea similar to the Luxor in Las Vegas, a building in Los Angeles has been plastered with the visage of Optimus Prime. Thanks to Darin and his friend for the picture.
Update: Darin provided the location and link to the site from his friend Jeremy. The building is in the Hollywood area around Wilshire and La Brea intersection. Click here for a street view link of the location (use your mouse to tilt up) to see the location pre-Prime poster.