This astonishing example of retail architecture in Sao Paolo, Brazil — designed by local architect Isay Weinfeld — is probably the most visually stunning commercial space I’ve ever seen, and certainly the most impressive book selling environment. If it’s real, that is. The pictures make it seem ingenious, futuristic and ideal, which makes me wonder how (and whether) it really works in practice as a bookstore. Still, there’s no denying: the pictures are beautiful.