Cologne, Germany, is a vibrant city with a rich history that spans over 2,000 years. Founded in the 1st century AD as the Roman Colonia Claudia Ara Agrippinensium, it grew from a Roman settlement into a major medieval trading hub and today stands as the fourth-largest city in Germany, with about 1.1 million residents in the city proper. From Amsterdam we sailed upriver to Cologne, Germany.
