The exterior of the Tate Modern situated on London's South B [Getty Images]

UNITED KINGDOM - JULY 17: The exterior of the Tate Modern situated on London's South Bank, in London, U.K., on Tuesday, July 17, 2007. The U.K. government will give 50 million pounds ($102 million) for the new extension being built at Tate Modern, the art museum on London's South Bank, Tate said in a press release. Photographer Will Wintercross/ Bloomberg News (Photo by Will Wintercross/Bloomberg via Getty Images)

Bloomberg Bloomberg