Core Viewpoint - The article highlights the historical and cultural significance of the painting "Jincheng Lansheng Tu," which vividly depicts the city of Lanzhou over a century ago, showcasing its unique geographical features and historical landmarks [3][15]. Summary by Sections Historical Context - "Jincheng Lansheng Tu" was created by the folk painter Ma Wu during the Qing Dynasty, representing the landscape and cityscape of Lanzhou, specifically the area that is now part of Lanzhou's Chengguan District [11]. - Lanzhou was established during the Western Han Dynasty and has undergone renovations throughout history, gaining prominence during the Ming Dynasty with a well-defined inner and outer city structure [13]. Geographical Features - The painting illustrates the Yellow River flowing through Lanzhou, with notable features such as the Zhenyuan Floating Bridge and waterwheels along the riverbank, highlighting the city's reliance on the river for water supply [5][7]. - Lanzhou is recognized as a typical river city, being the only provincial capital through which the Yellow River flows, earning it the nickname "Pearl of the Yellow River" [15]. Cultural Significance - The painting serves as a valuable historical document, capturing the distribution of landmarks and the overall layout of Lanzhou over a century ago, thus providing a "Lanzhou impression" for future generations [17]. - The article encourages readers to explore Lanzhou today, visiting historical sites such as the White Pagoda Mountain Park and the Zhongshan Bridge, which are integral to the city's cultural heritage [19][25].