The Baptistery of St John in Poitiers is claimed to be the oldest existing Christian building in France. Built in about 360 but much altered, it is worth half an hour (at least) of anybody's time.
For a plan of the building, there is a good link here, and for more information check out Wikipedia
Come and See the Sunflowers - In only a few weeks time it will be sunflower season again in the Loire Valley. The farmers sow them in May and harvest them in September. In between, for ...