The biggest question in the world of art and culture concerns the return of property taken without consent. Throughout history, conquerors or colonial masters have taken artefacts from subjugated peoples, who now want them returned from museums and private collections in Europe and the USA. The controversy rages on over the Elgin Marbles, and has been given immediacy by figures such as France's President Macron, who says he will order French museums to return hundreds of artworks acquired by force or fraud in Africa, and by British opposition leader Jeremy Corbyn, who has pledged that a Labour government would return the Elgin Marbles to Greece. Elsewhere, there is a debate in Belgium about whether the Africa Museum, newly opened with 120,000 items acquired mainly by armed forces in the Congo, should close.