File photo taken on March 11, 2019 shows a tourist posing for a photo in front of the Louvre Museum in Paris, France. The Louvre Museum was shut down on March 1 due to the spreading coronavirus epidemic. (Xinhua/Gao Jing)

File photo taken on July 14, 2019 shows tourists visiting the Louvre Museum in Paris, France. The Louvre Museum was shut down on March 1 due to the spreading coronavirus epidemic. (Xinhua/Gao Jing)

File photo taken on March 11, 2019 shows a man standing in front of the Louvre Museum in Paris, France. The Louvre Museum was shut down on March 1 due to the spreading coronavirus epidemic. (Xinhua/Gao Jing)