ANNSO·HILL HOTEL Tengchong, designed by Harvard architect Qi Shanshan, the B & B was selected as 'designed in China B & B' by National Geographic of China in 2018. It is located in Heshun ancient town of Tengchong, facing the volcanic group of 600 years and sunken River wetland. The mountain is located in the winding and circular mountain terrain of Heshun ancient town, with a view of the peak and all of the ancient town. From the entrance, the eaves are connected up and down like the roof ridge. As soon as they open and close, they seem to be breathing. People can climb up on its back. One side of all the public spaces, from the French windows, is the forest. The space takes white as an oath and tranquility as its name. It has its own mountains and forests. Walking in the fog, you can see your mood“ The 'flying corridor' meanders to bring the tourists to the mountain and send them back to their rooms. Under the change of light and shadow, there are various forms of architecture. The interior 2.5-dimensional space design, surrounded by green, gives the building a new young life. Restaurants, cafes, children's spaces, tea rooms, study rooms, fitness centers, conference rooms and guest rooms of different forms grow along the existing context of the building, connected from top to bottom, and connected by traffic. This is a time treasure box connecting Heshun ancient town and modern life. It can open a window to the new world and bring people to see the light.