The Week in Art podcast | The Mona Lisa’s endless, and problematic, allure; Judy Chicago; and New Objectivity

We speak to the Leonardo da Vinci scholar, Martin Kemp, about the famous painting's potential move and the latest research on its background, to the US artist about her show at Serpentine North and to the director of the Leopold Museum in Vienna about Christian Schad’s 'Self-Portrait with Model' (1927)