Cologne (Köln in German), built along the Rhine river, is Germany's 4th largest city with a population of approximately 1 million. Famous for the Cologne Cathedral and other historic monuments and sights, you might be led into believing there isn't more to the city than "old". You would be wrong.
ケルンから
ケルンの低料金の宿泊施設 における今月の平均最安値