Modern sewage treatment plant, view over a clarifier on digester towers, Kulmbach, Bavaria, Germany, Europe

architecture bavaria bavarian being beings building buildings clarifier day daylight daytime digester during europe european exterior exteriors federal franconia franconian frg german germany human humans kulmbach modern modern of off on outdoor over people person persons photo photos plant plants republic run run off runoff sewage sewerage shot shots southern the tower towers treatment view views water works