Skeletons and skulls reveal the secret lives of the biggest animals on Earth. Plus: the influence of surrealism and the legacy of Bonnie Prince Charlie
Nothing gets you closer to an artist than the intimacy of a drawing. To look at one by Da Vinci is to see his mind and hand at work. This exhibition of portrait drawings by some of the greatest ever artists is an encounter both with genius and the faces of people who lived up to 500 years ago. Hans Holbein's drawings of Tudor Britons are spookily exact, like Renaissance photographs, while Rembrandt's make you cry. The stuff of magic.
National Portrait Gallery, WC2, 13 July to 22 October