Visitors view photos taken by French photographer Bruno Requillart during his personal exhibition "Poetique des formes" ("The Poetics of Forms") at Xie Zilong Photography Museum in Changsha, capital of central China's Hunan Province, July 6, 2019. The exhibition opened here Saturday as part of the 2019 Sino-French Cultural Spring activities, showcasing some 80 photos by French photographer Bruno Requillart. (Xinhua/Li Ga)