In the German-speaking part of Europe, there is only one altarpiece remaining that was made for the high altar of a cathedral (in the Chur Cathedral in Switzerland).[8] In the 18th century, altarpieces like Piero della Francesca's Saint Augustine Altarpiece were often disassembled and seen as independent artworks. The different panels of the polyptych of St Augustine are thus today spread out among several different art museums.[11]