as his mental state meant that he had to return to America for treatment against drink and depression. Administrative divisions On August 20, 2012, Lanzhou New Area was approved by the State Council of China's Central Government. In 2019, Lanzhou New Area was formally established as a county-level division of Lanzhou, its area being split off from Yongdeng and Gaolan. The updated area and population of Yongdeng and Gaolan are not yet reflected in the table. Tourism The Five Spring Mountain Park () was built at the northern side of Gaolan Mountain, is famous for its five springs and several Buddhist temples. The Zhongshan Bridge () was the first permanent bridge over the Yellow River. Baita Mountain Park () was built close to the mountains at an elevation of and opened in 1958 across Zhongshan Bridge. The Lanzhou Botanical Garden (), located in the Anning District, has a large variety of trees, flowers and other plants. Xiguan Mosque (), is one of the larger mosques in China. On Wuquan Mountain (), many ancient architectural sites are located. Xinglong Mountain (), is covered with thick pine forests and scattered with colorful temples. Lutusi ancient government (), a large complex of ancient governmental buildings. Museums Gansu Provincial Museum (), displays archaeological and fossil finds from Gansu and exhibitions on Gansu's history. Lanzhou Museum (), is an important cultural unit on the Silk Road. As of October 2017, the collection contains more than 13,000 pieces of collections, including pottery, porcelain, bronze, calligraphy, coins, jade, stoneware, etc. There are 52 national first-class cultural relics, 78 national second-level cultural relics and 682 national third-level cultural relics. Gansu Art Museum (), Providing a broad display and external communication platform for artists. Lanzhou City Planning Exhibition Hall (), showing the profound Yellow River culture of Lanzhou and integrating indoor exhibition, architectural concept and urban characteristics. Lanzhou Painted Pottery Museum (), The total number of collections is 250, including 50 precious cultural relics, it displays the painted pottery civilization represented by the cultural pottery of Majiayao. Gansu Science and Technology Museum () sound, light, electricity and other high-tech means will be fully adopted, and the way of teaching and learning will enable visitors to embrace modern science in a pleasant atmosphere. Economy Since 1949 Lanzhou has been transformed from the capital of a poverty-stricken province into the center of a major industrial area. It was one of the