Köln, also known as Cologne, is a major city in western Germany. It is located on the banks of the Rhine River and is known for its rich history and vibrant culture. The city is famous for its stunning Cologne Cathedral, a UNESCO World Heritage site, which features impressive Gothic architecture and attracts millions of visitors each year. Köln is also an important cultural hub, hosting numerous museums, galleries, and theaters. The city is known for its annual events, such as the Cologne Carnival, which is one of the largest street festivals in Europe. Additionally, Köln is recognized for its local beer, called Kölsch, which is served in small glasses.