The pavilion’s design is based on a formulaic grid system developed by Mies that not only serves as the patterning of the travertine pavers, but it also serves as an underlying framework that the wall systems work within. By raising the pavilion on a plinth in conjunction with the narrow profile of the site, the Barcelona Pavilion has a low horizontal orientation that is accentuated by the low flat roof that appears to float over both the interior as well as the exterior.