See if you can attend a worship service at Great Synagogue of Bordeaux. You'll learn a few things about the traditions and practices of the Jewish religion.
You can keep your money safely in your daypack, because it doesn't cost a penny to wander around Great Synagogue of Bordeaux. Located in Capucins - Victoire, you'll find some worthwhile attractions close to this Jewish house of worship. Why not visit Aquitaine Museum, Place de la Bourse and St. Michael Basilica too?