See if it's possible to attend a service at Sinagoga del Agua. You'll learn a few things about the customs and practices of the Jewish religion.
Located in Úbeda, this Jewish house of worship is worth a visit. But you'll find lots more to see in this area. Civil Guard Academy, International University of Andalusia, and Palacio de Vela de los Cobo are within easy reach of Sinagoga del Agua.