Google have modeled all ten competition stadiums in a very high degree of detail. In addition to the stadium shell, we model the seating area of the arena as well as the ramps and other notable portions of the ground. Scroll below for some screenshots.
We make it super-easy to use them: just turn on the 3D Buildings layer in Google Earth and fly to a stadium. Within a couple of seconds it will fill in to full detail!
Don't know where the stadiums are? Just open this little file in Google Earth, which marks each of the stadiums precisely.
Don't have Google Earth? Download it here.
You can find equivalent content for the host cities at the 3D Cities page.