Where is Linyi air-raid shelter?

Linyi Economic Development Zone, Shandong Province. It is a tourist attraction, where there are a large number of air-raid shelters, among which the spring air-raid shelter is the most spectacular, which can accommodate hundreds of people, and it has a very detailed design, which protects life through power and ventilation systems, and there is also a bunker with an estimated volume of 240 cubic meters, which can protect nearby residents from air strikes. Linyi air-raid shelter, located in Feixian County, Linyi City, is a large-scale war relic built in 1943. The bomb shelter consists of three parts: the control room, the launching room and the safe space for people to take refuge.