The Quan logo standing in Quancheng Square is the symbol and symbol of Jinan. It is 38.11 meters high and weighs 170 tons. It takes the charm of the Chinese character "spring" in seal script, with three spring-like shapes rising up and down. The three blue pillars rising gracefully are like the three springs of Baotu Spring. The floor paving pattern is derived from the description of the city in historical books, and is equipped with 72 springs and four groups of springs (artificial spring-marked fountains). The solidified "spring" and the gushing spring rise majestically from the "city", reflecting the style of Quancheng and expressing the infinite nostalgia of Quancheng people. The pearl in the middle of the spring logo symbolizes that the spring water is the pearl of Jinan City. Coincidentally, Jinan also has one of the four famous spring groups - Pearl Spring.