WIZARD101 people who STILL play please click on this and read the description!?

alright i have been wondering this... a long time ago (so i have been told) the highest level is 50, i have been wondering since they added new things to the game is it still 50? and also please list if there are any other worlds besides: wizard city, krokatopia, marlybone, mushu, dragonsphyre (sorry i dont know how to spell it), and celestia. please list any other worlds that you can go to later other than those worlds...btw i play this game becuase my brother plays this and bet me that i couldnt beat it for $150 and he is level 7, he has played for 2 monthes now WITH membership and thats as far as hes gotten me, so far i am level 49 and i have only played for about 2 weeks, yes i play this nonstop because i had surgery and i have to stay in bed for a month but anyway i just thought you would find that funny.. but please tell me the highest level and any other world... hopefully i just have to get to grandmaster for that $150!!! haha THANKS SO MUCH!!!! and sorry for writing so much! :)