The 'Lighter' Side Of The Force
#2 You don't know of any other Jedi temples that exist outside of Croissant. Please do yourself a favor and watch The Clone Wars and Rebels, because they show at least two others and tell us that there are many Jedi Temples that haven't been found by the Empire yet (Rebels).
Desert planet is not Tatooine or Jakku, it is Jedha.
#2 Sith temple on Korriban?