A detailed view of a piece of work entitled 'Banksus Militus Vandalus' during a press preview of the first unauthorized retrospective of works by UK artist Banksy on June 6, 2014 in London, England. The exhibition, curated by Steve Lazarides brings together over 70 works, in what is the largest collection of Banksy's work ever staged and runs at Sotheby's S/2 Gallery from June 11 to June 25, 2014 . (Getty)