Hospital visits?

Almost 15 weeks. My OB has yet to say anything about setting up a hospital visit. We know what Hospital we want to use. It is a stones throw from our home with a great reputation and every baby born amongst my friends has been born there with great experiences for every situation.

Should I pursue figuring out a tour myself? How far along do I need to be? What questions should I ask? Are there classes I should take? FTM...