The remarkable story of an overlooked map archive that reveals how maps have helped inspire some of the greatest scientific discoveries, but also led to terrible atrocities. At the heart of University College London, nestled in the centre of Bloomsbury, lies a long-forgotten map library packed with thousands of maps and atlases. After Professor James Cheshire stumbled upon it, he spent three years sifting through hundreds of dusty drawers to see what was there. He was stunned to uncover some of the most significant maps and atlases from the last two centuries – many of which had not seen...