The Great Mill has a unique medieval architecture and was the largest industrial investment in Europe at that time. This mill is characterized by its very large size, with a height of 26 meters and a length of 41 meters. It is equipped with 18 water wheels with a diameter of 5 meters; It was used to store and grind various grains into flour (200 tons of flour per day), and served as a bakery for a long period of time. This magnificent historical landmark was subjected to a devastating fire in 1945 AD, but it still retains its special splendor. It should be noted that the mill can only be seen from the outside.