Cologne (Köln), the largest and oldest city on the Rhine, is famous for its Gothic cathedral, its yearly Carnival celebrations, Eau de Cologne, and the friendliness of the locals. You can take a tour through the Imhoff-Stollwerck Chocolate Museum (with free samples!), visit many modern art museums, and enjoy a leisurely cruise on the Rhine. True gourmands appreciate that Cologne has the highest number of bars, restaurants, and breweries per capita in Germany. You can indulge in typical German specialties or ethnic cuisines, just as long as you wash them down with Kölsch, Cologne's famous beer. Cologne is also considered a great base from which to explore the rest of the Rhine region.