1. Cologne Carnival: One of the largest and most famous carnivals in Europe, the Cologne Carnival (Kölner Karneval) attracts millions of visitors each year. It features vibrant parades, elaborate costumes, and a festive atmosphere that transforms the city into a celebration of joy and creativity. 2. Cologne Cathedral's Twin Spires: The Cologne Cathedral (Kölner Dom) is known for its stunning Gothic architecture and impressive twin spires, which are among the tallest in the world. The cathedral is a UNESCO World Heritage Site and took over 600 years to complete, with construction beginning in 1248 and finishing in 1880. 3. Cologne's Beer Culture: Cologne is famous for its local beer, Kölsch, which is a light, refreshing ale served in small, cylindrical glasses. The city has numerous traditional breweries and pubs, known as "Brauhaus," where visitors can enjoy this unique beverage while soaking in the local atmosphere and culture.