A look at the hidden psychology of renowned painter JMW Turner through his 37,000 private sketches

　　在电视剧《凡尔赛宫》热播之际，主持人、历史学家Lucy Worsley和Helen Castor来到取景地，法国凡尔赛宫，讲述这座世界最伟大建筑之一背后的真实故事。