Suddenly every museum in London is becoming an architecture museum. There’s Global Cities, the blockbuster show at Tate Modern; the Victoria and Albert has an architecture gallery; the Architecture Foundation is attempting to build itself a headquarters (designed by Zaha Hadid) right behind Tate Modern; and there’s Hadid’s first big British retrospective at the Design Museum.

Yet architecture has always been seen as something difficult to exhibit, a problematic translation of a genre that can only really be appreciated by being there. When I put this to Design Museum director Deyan Sudjic, he says: “I think we worry too much about it [though he looks like a man who doesn’t]. The Guggenheim’s biggest ever selling ticket show was on Frank Gehry. The V&A pulled half a million people in to see the Art Deco show.”