Now that I think about it, Sims University should not be part of the list nor Oasis Landing. The expansions Seasons and Generation (which have no town) and World Adventures (which have 3 countries you can visit) are connected to the town you are playing at the moment. I mean you need to be in Sunset Valley, Riverview or any other town before you can go to these places. But than again I am a little nooboo and it is not up to me to make this decision.