Hauptkirche St. Katharinen

Situated on an island, it traditionally served as the church of the seamen. The base of its spire, dating from the 13th century, is the second oldest building preserved in the city. The church is also famous for its centuries-old organ, played by Bach when he was visiting the city. The instrument was actually destroyed to a large extent by the wartime bombings, but has been meticulously rebuilt and is playable again.