Oscar Niemeyer's design for the Serpentine Gallery Pavilion 2003 was both simple and ingenious.

Built in steel, aluminium, concrete and glass, the Pavilion's ruby-red ramp contrasted with the surprise of a partly submerged auditorium, affording views across the park. It also housed specially conceived wall drawings by Niemeyer. The Pavilion conformed to Niemeyer's principle that every project must be capable of summary in a simple 'sketch' and that once the support structure is finished the architecture should be more or less complete.