21. These exhibition rooms offer art the largest possible freedom through their clarity and precision. 22. The first exhibition room is dedicated to the pre-industrial mining. 23. This year it opened a bookstore, a new entrance and beautifully renovated exhibition rooms . 24. The interesting effect was, a glass roof let sunlight into the elongated exhibition room . 25. In addition to the exhibition rooms , the building includes a shop, caf?and residential apartments. 26. There is a new art and technology exhibition room . 27. Towards Severinstra�e, the ground floor consisted of the main entrance hall and an exhibition room . 28. At that time the single-storey extension was completely rebuilt to provide a small exhibition room . 29. Small exhibition rooms were set up on both the ground floor and the second floor. 30. The individual exhibition rooms vary in size and structure.