Yugioh or Fairy Tail. =P
Yes, two anime worlds but I would love to live in those. XD
Yugioh: Make a living playing cards and building up a good strategic deck, the world is based around it and the tech is amazing! =D
Fairy Tail: Magic and mayhem but also not as dangerous as Harry Potter. Seriously, which sane person would want to send their kid to Hogwarts?!