Recent Van Gogh show was National Gallery’s most popular ever and British Museum gears up for arrival of Bayeux Tapestry When Tate Modern announced a major exhibition devoted to Frida Kahlo, few doubted it would be popular. The Mexican artist has become one of the most recognisable cultural figures in the world, with her image adorning everything from tote bags to T-shirts. But even Tate was unprepared for the scale of demand. The gallery has said that more than 41,000 tickets have already been