Bridge made of shalt struts and metal over which an S-Bahn runs Hohenzollern Bridge in Cologne over the Rhine

bridge shaft struts metal sbahn cologne rhine transportation urban infrastructure metal structure railway german engineering rhine river cityscape hohenzollernbrucke rail transport cologne landmark steel transportation system railway bridge bridge design german city urban landscape cologne architecture sbahn line river crossing iconic city colognes skyline train travel steel structure elevated urban transport bridge architecture rail system cologne cityscape transport infrastructure rhine embankment steel framework