altstadt
architecture
architecture and buildings
blue
bridge
building exterior
cathedral
church
city
city life
cityscape
cologne
cologne cathedral
communications tower
downtown district
dusk
europe
famous place
german culture
germany
history
illuminated
national landmark
night
north rhine westfalia
outdoors
railroad station
railroad track
railway bridge
rhine river
rhineland
riverside
sky
skyline
tower
town
travel destinations
twilight
urban scene