Cathedral at Carpentras
Carpentras is on the way from Avignon to Le Barroux. One way to get to Le Barroux is to take the bus to Carpentras and then a taxi on from there. The problem is that although Carpentras is a great place for lunch, taxis are rather hard to come by. At any rate, you do get to visit the Cathedral of St Siffrien which has this rather good Lady altar:
and an "Altar of the Chair" imitation behind the High Altar:
There is also some French baroque: