Photocall for"Christmas at Kew" event held in London

A visitor admires light installations during a photocall for "Christmas at Kew" event at the Kew Gardens in London, Britain, Nov. 19, 2019. The "Christmas at Kew" light show will be held here from Nov. 20, 2019 to Jan. 5, 2020. (Xinhua/Han Yan)