If Ernest Hemingway made Paris a moveable feast, architect Gérard Grandval made its Créteil suburb the vegetable course. Built during the 1970s, the Créteil Cabbages, or “Choux de Créteil,” are French Brutalism at its finest. The ‘utopian’ residency is composed of 10 otherworldly buildings whose balconies extend like giant, concrete petals – hence the nickname, “the…