The first thing that greets those getting off MRT Zhongxiao-Fuxing Station is the "Tree River", a public art project made of gigantic stainless steel sheets and granite. Erected on the pedestrian island, "Tree River" is LCD-illuminated in the evening for a different look. "Tree River" was co-produced by Chen Chien and Tsai Shu-ying, who lament the once-pristine scenery of the mountainous Taipei. The trees painted on the wall, stones suspended in mid-air, and water running from nowhere present commonplace yet amusing silhouettes that not only underscore the history and diversity that define downtown Taipei, but also make art works more accessible to the public. When darkness falls, the illuminated shapes of trees, combined with a real stream, add a relaxing touch to the bustling city landscape. Ventilation equipment of MRT Zhongxiao-Dunhua Station