As a scroll painting, a piece of embroidery and work of art, the Thangka is always appealing. It readily tantalizes one's eyes with brilliant colors and elaborate scenes. What's the story behind this special art form from Tibet? What does Thangka depict? How is it progressing today? Niu Honglin is visiting a special Thangka experience center to get the answers. #RailwayTrippinTibetanStyle