Greetings from Cologne: Discover the Majestic Cologne Cathedral Greetings from Cologne! Cologne Cathedral (Kölner Dom) is a Catholic cathedral in Cologne, North Rhine-Westphalia, Germany.   The Splendor of Cologne Cathedral Greetings from Cologne! Cologne Cathedral, known as Kölner Dom in German, is a magnificent Catholic cathedral located in the heart of Cologne, North Rhine-Westphalia, Germany. This architectural marvel stands as a symbol of the city’s rich history and cultural heritage. A Historic Landmark Cologne .