Dedicated to the brothers Thomas and Heinrich Mann, who spent their youth there. It contains many of their works. Closed until 2023.
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Or Marienkirche: the biggest one, a fine brick Gothic building near the Rathaus (city hall) at the centre of the Altstadt.
city hall
Its architecture is a stylistic potpourri reaching back to the 12th century. It is still the seat of the city administration and not a museum, so you can't have a look inside on your own. But there are guided tours every hour or so where the many historic rooms and the gallery of city leaders' portraits are explained (in German and possibly other languages).
Christmas market
Katharinenkirche
A church without a tower that houses works of Ernst Barlach.