A visitor is seen outside the Saint-Hubert church of the Chateau d'Amboise where the tomb of Leonardo da Vinci is settled in Amboise, France, May 1, 2019. Thursday marks the 500th anniversary of the death of Renaissance master Leonardo da Vinci. The famed painter, sculptor, writer, inventor, scientist and mathematician spent his last three years in Amboise as a guest of France's King Francis I. (Xinhua/Gao Jing)