The Dom and Diocese Museum in Mainz is located in the cloister of the impressive Martinsdom cathedral. The museum tells the history of Christianity in Mainz, which dates back over 1,000 years. Inside you will find a wealth of precious items such as sculptures, books, church items and works of art cover the Holy Roman Empire and the Middle Ages. The museum is well-renowned around the world for its collection, coupled with the Christian history of Mainz.