In my opinion, you will find plenty to do in Toledo. There is, of course, the Catedral. You'll also enjoy the Alcazar, many churches and museums. The town is great for walking, shopping and people watching, too. A day seems too short.--Carole Chiaro
P.S. We'll be in Spain for three weeks in May. Weren't we "in Spain together" at the same time previously (September/October 2001)?