Meier has exploited the two naturally-occurring ridges (which diverge at a 22.5 degree angle) by overlaying two grids along these axes. These grids serve to define the space of the campus while dividing the import of the buildings on it. Along one axis lie the galleries and along the other axis lie the administrative buildings. Meier emphasized the two competing grids by constructing strong view lines through the campus. The main north-south axis starts with the helipad, then includes a narrow walkway between the auditorium and north buildings. 