A small baroque church on the eastern side of the old town that holds, inside a glass-walled chapel, one of the most extraordinary pieces of medieval European art: the silver-gilt sarcophagus of Saint Simeon. The chest, two metres long and worked in repoussé on every surface, depicts scenes from the saint's life and from the lives of the Hungarian royal family.
The church is normally open during daylight; visitors can usually walk in for free, though a donation is encouraged. The chest is illuminated and clearly visible from the nave; binoculars help with the detail.