A visitor looks at artworks during an exhibition titled "Mask-Associations" in Istanbul, Turkey on Feb. 25, 2021. The exhibition "Mask-Associations," organized by the Contemporary Istanbul Foundation in cooperation with the Baksi Foundation based in the eastern Black Sea province of Bayburt, is solely devoted to the use of masks in the course of history. It will run until April 21. (Photo by Osman Orsal/Xinhua)