The Small Wild Goose Pagoda is bathed in the winter sun and surrounded by green and red trees in Xi'an, capital of Northwest China's Shaanxi province, Dec 21. [Photo by Wang Jian/Xi'an news network]

An aerial view of the Small Wild Goose Pagoda scenic area in Xi'an, Dec 21. The pagoda was built during the Tang Dynasty (618-907), and is one of the 33 historical sites in Xi'an along the Silk Road that was included in the World Heritage list by UNESCO. [Photo by Wang Jian/Xi'an news network]

An aerial view of the Small Wild Goose Pagoda scenic area in Xi'an, Dec 21 [Photo by Wang Jian/Xi'an news network]