Rocking Paris isn’t cool anymore. Rocking Shanghai is all the rage these days. The exhibition "Chanel Culture," for example, is causing fashionistas to travel halfway around the world to check out relics of the maison. The show, which began this week and will continue until March 14, consists of 400 items that outline the life of Gabrielle Chanel, such as letters, drawings, photos, and of course clothes. Just to give you an idea, it took two years to put together the exhibit. Ah, some pieces from Karl Lagerfeld are also there…