Well, to fully discover some place, city, region or country, not even a lifetime can be enough :) Like I said, we spent some six months on Malta and I would never dare to say that we saw everything that the islands offer. And it´s the same with all the places where we have lived so far. Even cities. We lived 2 years in Krakow, 5 years in Prague but of course I haven´t been to every street and every square :) The world is just too big, we only scratch the surface but it´s still better than just sit on the couch and watch TV back at home :D