A Chinese artist has found a unique way to express his love to his grandmother: a gigantic staircase in the air. These stunning photographs show the 1,650ft ladder, which was made with fireworks, stretch right up into the sky in Quanzhou, south-eastern China, on Monday. This is the work of Cai Guoqiang, an artist who is originally from the city and now based in New York, reported the People's Daily Online.