In Århus, northwest of the cathedral in Vestergade stands the Church of Our Lady (Vor Frue Kirke), erected in the 13th-15th century. Initially part of a Dominican priory, it is now a merely Gothic structure with frescoes and a wonderful altar-piece from the workshop of Claus Berg (1520). In 1955, in the course of quarry work underneath the choir of the Church of Our Lady, a little minster constructed of tuff limestone was found. After cautious restoration this old domed catacomb is now a church within a church. The chapter-house which served as an old people's hospital from the Reformation was also devoted as a church, so there are now three churches in all.