Participants wear glowing vests as they party on a flashing dance floor on top of the Sydney Harbour...
Participants wear glowing vests as they party on a flashing dance floor on top of the Sydney Harbour Bridge in Australia May 18, 2018 during a press preview of the Vivid Climb Mandarin for Chinese-language tours of the Sydney icon. Sydney's Vivid festival of light and sound will begin May 26 with many of Sydney's landmarks participating in the annual event. REUTERS/Jason Reed