LONDON, ENGLAND - APRIL 07: Yayoi Kusama's 'Lake Michigan' (est. $2-3 million) and Rudolf Stingel's untitled work cast in copper (est. $5-7 million) go on view at Sotheby's on April 7, 2017 in London, England. The works will be offered at auction at Sotheby's in New York on May 18, 2017. (Photo by Tristan Fewings/Getty Images for Sotheby's)
