BASEL, SWITZERLAND – JUNE 17: A visitor walks next to the artwork “Continuel Mobile – Sphere rouge” by Michelangelo Pistoletto in the Unlimited section of Art Basel on June 17, 2014 in Basel, Switzerland. Art Basel one of the most prestigious art fair in the world, which runs until the 22nd of June 2014 will showcase the work of more than 4,000 artists selected by 300 leading galleries. (Photo by Harold Cunningham/Getty Images)
