Every working day at noon you are invited for 20 minutes organ concert. Free admission.
Every Thursday at 19:00 you are invited for a concert ("Motette"), it lasts about an hour, entrance is free, although donation is welcome.
The Cathedral Museum is the conclusion of the large restoration of the Cathedral, when during extensive excavations medieval tombs with precious appurtenances were discovered. Today they are the key exhibit in the museum - findings from six episcopal tombs from the 11th to 15th century. You will also see Romanesque room of 13th century with fresco paintings, early reliefs dating back to the second half of the 11th century: Samson tearing the lion and Fenris wolf; samples of silver altar from 1400-1850, manuscripts from Cathedral library written on parchment from the 11th to the 15th century, medieval wooden statue of the bishop dating back to 1410-1420, etc.
From Easter Sunday to 1 November you can climb up the south tower of the cathedral just for 1 EUR.