In the first half of the XVI century king Sigismund I the Old build the cannon foundry and the arsenal close to Wawel Castle and Grodzka gate, now Grodzka St 64. It was a part of the city fortification system. In 1643 the building of arsenal was rebuild in early baroque style, in 1866 one more store was added, in 1898 it was rebuild again, and according to some notes it happened few more times later, the last works were made in 1927. From the middle of XIX and till 30s of XX century it was used for military purposes, mostly as a storage. Nowadays it is a seat of Geography Departure of Jagiellonian University.