Classic Where to mob-grind for XP?

So i found that mob-grinding is super good for XP, I did lvl 52-60 in just maybe 40-60 minutes at the Undead starting zone killing the Mindless Zombies spawning at the gravesWas making like 700-900k xp/h on averageNow that Im level 60 and these mobs stop scaling at 60, is there any other locations you guys recommend? via /r/wow https://ift.tt/2XiWXb4