After his success in forcing the British Natural History Museum to return skulls and bones of Tasmanian Aboriginals, the human rights lawyer Geoffrey Robertson was asked by the Greek minister of foreign affairs to ascertain whether international law could be used to induce the British to return the Parthenon Marbles to Greece. Although the project found favour with a succession of Greek prime ministers, the Tsipras government decided not to act on Robertson’s recommendations. This book is a revised version of his report, along with a discussion of demands for the repatriation of other cultural treasures.