This striking sculpture of a revolver with its barrel tied in a knot is an unmissable sight outside the United Nations headquarters in New York City, the United States. Created by Swedish artist Carl Fredrik Reuterswärd in response to the murder of British musician John Lennon, the bronze artwork – officially titled "Non-Violence" and widely known as "The Knotted Gun" – has become a symbol of peace and opposition to violence and war.

(This photo was taken by CGTN reporter Zhang Jin during a visit to the UN headquarters in 2019.)