The Crane (Żuraw) is one of the defining symbols of Gdańsk and represents what little is left of the city’s great trading age. First mentioned in 1367, the original structure was burnt down in 1442 before its current design was created in 1442-1444. As a working crane it was used to transfer cargoes and to put up masts on ships. At one time this was the biggest working crane in the world but it also served a defence function and as one of the gates to the city. It had a lifting capacity of 4 tonnes to a height of 11 metres and this was achieved by two huge wooden wheels at its heart each with a diameter of 6 metres. These wheels were originally powered by men walking inside of them to turn the lifting mechanism. It remained a working crane until the middle of the 19th century and was 80% destroyed in 1945 in the battle for Gdańsk.
After the war it was rebuilt and donated to the Polish Maritime Museum of which it remains a part today. You will be able to view a collection of permanent and temporary exhibitions inside including an exhibition on port life between the 16th and 18th centuries. In Polish only, displays include models of lighthouses, the old port, lifesize recreations of counting houses and old port life in general plus access to the crane's two huge drive-wheels.
References:The Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.