Main City Hall (Ratusz Glownego Miasta) – was originally built in 1379-1492, but was almost completely destroyed during WWII. It has been carefully rebuilt. The tower is 80 meters high (that you can walk up), on top there is a replica of the Golden King Sigismund August statue from 1561 (and is man-sized), and inside there is a 37 bell carillon that is played throughout the day on the hour. Inside you will also find the Gdansk History Museum.
Address: ul. Dluga 46/47 
www.mhmg.gda.pl

St. Mary's Church (Bazylika Mariacka) – is the largest medieval brick built church in Europe, begun in 1343, it took 150 years for completion. The tower is about 76 meters and topped by a crucifix which is illuminated at night. The walk up the tower boasts breathtaking views, but is not for the faint hearted, as it is said to resemble Max Escher's “Ascending and Descending” never-ending staircase. Address: ul. Podkramarska 5 
www.bazylikamariacka.pl

The Great Mill (Wielki Mlyn) – built around 1350 by the Teutonic Knights, it was Europe's largest mill and working plant during medieval times. Before the Radunia Canal was built in 1356, the 18 large (5m diameter) wheels were powered by slaves. The huge building was a combination of flour mill, granary and bakery and was in use until 1945 when it was damaged by the war. It now hosts a shopping mall, and is surrounded by other buildings, most of them dating from 1400, now also hosting various little shops. Address: Ul. Wielki Mlyn 16

Amber Museum (Muzeum Bursztynu) – located inside Gdansk's medieval Torture Tower, this fine, multi-floor exhibition with additional multimedia displays features everything amber-related from large raw lumps of the stuff to some stunningly ornate artistic creations. Highlights include plants and insects trapped inside pieces, the world's largest display of
natural amber blocks, a small section devoted to ambers former medicinal uses and an amazing Fender Stratocaster. Address: Gdansk, Targ Weglowy 26 
www.mhmg.gda.pl/international/?lang=eng&oddzial=4

The Crane (Zuraw) – first mentioned in 1367, the original structure burnt down in 1442, and it's current design was created in the middle of the 15th century. The large crane was used to place masts on ships and to load cargo. After WWII, Zuraw was once again rebuilt and handed over to the Maritime Museum, that is now located there. (8/5PLN)
Address: Gdansk, ul. Szeroka 67/68