Aerial drone backward moving shot over roof electromechanical equipment of Hong Kong Children's Hospital, China with heavy traffic movement in the background at sunset

hong kong childrens hospital kowloon hospital building hong kong china hospital building hk white building city cityscape roof top e and m system dfma electrical and mechanical electromechanical architecture clinic drone roads mep modern traffic movement electrical cars street top services inflect traffic bridge top shot em health care business tourism equipment backward moving shot health doctor medics over paramedic travel medicine emergency shore child children