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Photo: Christian Wolf (www.c-w-design.de), CC BY-SA 3.0 de via Wikimedia Commons
Being featured on the pre-reunification 50-mark banknote, this gate is easily the most recognised landmark of Lübeck in Germany. The gate nowadays hosts a museum.
The Holsten Gate is a city gate marking off the western boundary of the old center of the Hanseatic city of Lübeck. Built in 1464, the Brick Gothic construction is one of the relics of Lübeck's medieval city fortifications and one of two remaining city gates, the other being the Citadel Gate (Burgtor). Known for its two-round towers and arched entrance, it is regarded today as a symbol of the city. Together with the old city centre (Altstadt) of Lübeck it has been a UNESCO World Heritage Site since 1987.
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A museum dedicated to all kinds of theatre puppets.
Petrikirche
Its tower platform (which can be reached by an elevator) offers a great view over the city, and if weather conditions allow it you can even see Travemünde (17 km to the north-east).
The name comes from its former name "Kommunales Kino" (communal or municipal cinema) as it was run by the city until August 2007 when it was taken over by enthusiasts. The cinema shows a lot of artsy films that do not attract a large mainstream following.
Christmas market
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).