cologne skyline from rheinauhafen with cathedral, great st. martin church and malakoff tower - cologne, germany

attraction bridge cathedral church city cologne contemporary destination deutschland drehbrucke embankment europe european german germany great saint martin innenstadt koeln koln landmark malakoff tower malakoffturm modern nordrheinwestfalen north rhinewestphalia old town promenade rheinau harbor harbour rheinauhafen rhine river rhineland skyline structure swing travel urban regeneration project renovation view