Back to back: Dutch expo reveals art's surprising side For centuries many have pondered what lies behind the Mona Lisa's enigmatic smile, but it was more of rhetorical question. Now art lovers can literally discover what the back of Da Vinci's masterpiece looks like. In a unique and quirky Dutch exhibition, Brazilian artist Vik Muniz displays about 15 painstakingly recreated exact reproductions of the backs of some of the world's most famous paintings. IMAGES AND SOUNDBITES