Nouvel Vogue

Jean Nouvel is standing in midair with his arms held high. O.K., he's not really in midair. He's standing on a window. Well, not exactly a window. It's a 1.5-m-by-3-m plate of glass that's set into the floor of a long corridor of his new Guthrie Theater in Minneapolis, Minnesota. It's the corridor that's in midair. Actually, it's not simply a corridor. It's more a kind of covered bridge to nowhere that cantilevers 54 m across and 18 m above the city's West River Parkway. And then there's the other window, the mirrored one. But we'll get to that...