You're walking along one day and a man grabs your wrist and says "RUN!" You realize it's The Doctor and he's about to offer you a trip through time and space, when/where is your first stop?
Well, considering we don’t know what exist outside of earth that would be habitable for humans, I would have to choose something on earth. In which case, I’d just tell him to choose. From watching Doctor Who, I’d say that he has a good judgement on magnificent places to take one.