高松宮殿下記念世界文化賞
He has had retrospective exhibitions at Pushkin Museum, Moscow, Russia; Kettle's Yard in Cambridge; the Prada Foundation in Milan; The Modern and Contemporary Civic Gallery in Latina in Trento; and Palazzo Fabroni in Pistoia. Castellani was the 2010 recipient of the Praemium Imperiale for Painting, the first Italian artist ever to receive this honor.