Zhangye

Zhangye captivates with the Danxia landform's rainbow-hued clay mountains, a geological wonder formed over 54 million years that draws 10 million annual visitors. Marco Polo marveled here for a year, and the city's giant reclining Buddha statue, measuring 34.5 meters in length, remains China's longest indoor Buddha. This natural spectacle is faster to explore than #8 Lanzhou's urban attractions, with the Danxia park spanning 510 square kilometers—dwarfing the average Silk Road site by 300%. The multicolored layers, created by iron oxide deposits, provide a 24-hour visual show that no other city on this list can rival.