We just completed our largest floor graphic project ever, part of the Oakland Museum's upcoming exhibition; Above and Below. It is a super high resolution image of the entire Bay Area covering over 40' x 40' of the main space.
Very detailed, you can see every building. It was one of those projects you enjoy looking at from start to finish, even when you're sweating buckets and aching from 10 hours of deep knee bends.
edit: we made a video. wanna see it? here it goes: https://docs.google.com/file/d/0B3dj06kIIf-_Z0hfdWdoZ1oxWk0/edit?usp=sharing