Cathédrale Notre-Dame-du-Puy, a centre of pilgrimage since before the time of Charlemagne, as well as forming part of the pilgrimage route
to Santiago de Compostela. Constructed over many centuries, it contains architecture of every period from the 5th century to the 15th,
which gives it a unique appearance. Most of its construction, however, dates from the first half of the 12th century.