Chongqing is a famous city in China due to its night scene. With the help of drone, I was able to see more dramatic scenery at night. But it was also very challenge to take the picture at night using a drone. Luckily it was windless, I tried 2 seconds exposure for each shot and successfully got the sharp shots. This image was stacked from 28 continuous shots taken by a drone. Those shots were used for decreasing noise and making the light trail as long as possible.