What Does It Take to Keep Art Basel on Top?

This week the art world descends on Basel, a Swiss city on the Rhine River, where the latest edition of the world's most important modern and contemporary art fair is taking place. We're talking about Art Basel, of course. Its 290 exhibitors include all the top galleries of the world. It's a place where you can see and buy museum-quality Picassos and Warhols next to still-wet-paint by emerging…