https://joy.videvo.net/videvo_files/video/free/2019-02/large_watermarked/190111_05_Construction_Drone_06_preview.mp4 Workers on Construction Site at Night Aerial shot descending over construction workers on a building site in Bangkok, Thailand, at night. aerialasiaasianBangkokbuildersbuildingconstructioncranesdevelopmentdroneengineeringhighrisehousingindustrialnightsiteskyscraperskyscrapersthailandweldingworkers