A bronze parapet bearing the names of victims in the 9/11 attacks is adorned with flowers and U.S. national flags at the National September 11 Memorial and Museum in New York, the United States, Sept. 11, 2020. Commemorative activities were held on Friday in New York City to remember those who lost their lives in the Sept. 11 terrorist attacks despite the COVID-19 pandemic. (Xinhua/Wang Ying)