The world's largest and longest 3D street painting is located in Nanjing, the capital of Jiangsu Province, China. It's called Rhythms of Youth and occupies an area of 27,986 square foot— 2737.5 m2. Its creator, famous Chinese artist Yang Yongchun, said it's a gift to the upcoming 2nd Summer Youth Olympic Games.
3D printing might be exciting and all, but it's only really good for making new items from scratch; what if you want to reapir something instead? Enter 3D painting, GE's new baby which could be used to fix up anything that's made of metal.