This image was acquired from
wikimedia. 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:
ConstantaRotterdam eo. The water way RotterdamConstana from the shortest way for ships between the North Sea and the Black Sea labelled in Esperanto La akvovojo RotterdamConstana ekde la plej mallonga itinero por ipoj inter la Norda Maro and the Nigra Maro maraj nomoj en Esperanto Die Wasserstrae RotterdamConstana seit der