In what countries or states is it ok to get married at 17 without parental agreement?

There is no state that will allow someone under the age of 18 to marry without parental consent/court approval/special circumstances. However, at the age of 18 you can get married in any state without parental consent, with the exception of Mississippi (where you have to be 21) and Nebraska (where you have to be 19). I have no idea what countries would allow it, but do you have a passport and several thousand dollars for plane tickets? Plus, many airlines (maybe *all* airlines) require parental permission for anyone under the age of 18 to travel without a parent.