This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
cologne kln brussels brssel bruxelles cathedral church river europe belgium antwerp cathedral of our lady cathedralofourlady onzelievevrouwekathedraal onzelievevrouwekathedraal gothic strasbourg liebfrauenmnster zu straburg liebfrauenmnsterzustrasburg cathdrale notredamedestrasbourg cathdralenotredamedestrasbourg strasbourg cathedral