“Don’t screw it up” was the modest ambition of Brussels-based architecture collective Rotor for the Belgian pavilion at last August’s Venice Architecture Biennale. But the exhibition found an unexpected fan: Rem Koolhaas, who showed the group’s catalog to Miuccia Prada, who then invited the collective to create an exhibition for Fogazzaro Hall, the enormous space in Milan where Prada hosts its fashion shows. Inspired by Largo Isarco, where Koolhaas is designing a new Prada Foundation building, Rotor has reconfigured the hall with discarded items from previous shows. The exhibition, entitled “Ex Limbo,” is on view until June 3. Find out more here.