28 L’HOMME QUI MARCHE I BY ALBERTO GIACOMETTI, 1961 SOLD: £65,001,250

‘A potent symbol of humanity and a humble image of an ordinary man’ is how Giacometti’s bronze masterpiece was described at the Sotheby’s Impressionist & Modern Art sale of February 2010. Numbered two in an edition of six sculptures, the 1.8m-tall figure strode away with the top price ever paid for a sculpture at auction.