The Serpentine Gallery is one of London’s best loved modern and contemporary art galleries. Exhibitions by artists including Jeff Koons, Wolfgang Tillmans and Richard Hamilton draw up to 800,000 visitors a year. Every summer the gallery offers leading architects who have yet to complete projects in Great Britain an opportunity to construct a pavilion in the grounds. In the footsteps of SANAA, Jean Nouvel and Oscar Niemeyer, Peter Zumthor is to have this honour in 2011.