To this day, the treasury of Aachen Cathedral guards shrines and works of art that are among the largest and most sublime in Western Christianity. Above all, St. Mary's Church owes its function as a coronation church to an impressive collection of valuable works of art, which attract around 100,000 visitors to the treasury every year. The collection includes numerous sacred gold and silversmith's works such as chalices, reliquaries and altarpieces. On around 600 m², late antique objects and those from the Carolingian, Ottonian, Staufer and Gothic periods bear witness to the liturgical practice and conception of power of the respective period.