Chinese pianist Lang Lang performs at the Museo del Prado as part of the ongoing celebrations for the 200th anniversary of the main Spanish national art museum in central Madrid, Spain, March 21, 2019. Lang Lang performed in the hall dedicated to Diego Velazquez, one of Spain's most famous and loved artists, and in the presence of Velazquez's most famous painting "Las Meninas". (Xinhua/Guo Qiuda)