Cellist Yo-Yo Ma (2nd L, front) poses for photos with a young man in Beirut, Lebanon, on Aug. 25, 2019. About 300 youths and children from Lebanon, Syria, Palestine and other places in the region joined cellist Yo-Yo Ma and artists from the Silkroad Ensemble to turn the rooftops and streets of Beirut's Qasqas neighborhood into a vast, interactive stage on Sunday. (Photo by Bilal Jawich/Xinhua)