So my husband is a pilot and has recently been hired by a major airline. We are about to start getting our free family air travel. SO EXCITED!!!! The vacation options are now endless for us. We really want to start taking yearly trips overseas to see the world. I personally LOVE old history: Greece, Egypt, Rome, etc. But, I want to take the kids to places that are appropriate for their age so they can appreciate what they are doing and seeing. They are 8 and 5. What are some good places to start out with?