I would be interested in hearing about the different towns mentioned in the Bible.  How large is Bethany?  How is Emmaus?  Other sites?  You basically read about these towns every day, yet without having pictures in our mind of what they look like, how they are differentiated from each other, it can be difficult.  I have obviously never been to the Holy Land but I think it would be one of the most useful (from a personal prayer perspective) places to visit for greater visualization.