Best in show | 31 December 2015
Until a decade and a half ago, we had no national museum of modern art at all. Indeed, the stuff was not regarded as being of much interest to the British; now Tate Modern is about to expand vastly and bills itself as the most popular such institution in the world. The opening of the new, enlarged version on 17 June — with apparently 60 per cent more room for display — will be one of the art world events of the year. But, like all jumbo galleries, it will face the question: what on earth to put in all that space? Essentially, there are two answers to that conundrum.