Hey MorningFlash,
Masaegu gave you great tips on visiting Japan but... why do you insist on visiting Nagoya so much?
I live in Nagoya and there's not much to see. Of course the world's largest Planetarium can be fun... but I guess Japan is not really about that.
As Masaegu mentioned, there's a great Aquarium too but still... that's not Japan!
Tell me what you want to do... how long you'll visit and maybe I can also give you some tips.
Japean