Monk Only: 100-110 in 3-6 hours

I was doing my quest chain for my Brewmaster artifact weapon, and I came across a step that took me to Pandaria, to a town in Valley of Four Winds called The Imperial Granary. The area is usually filled with little low level guys running around, but during this quest it phases and it's full of legion packs of 3-7 mobs per pack that are scaled to your level. I noticed that they have very low health (because you are supposed to be in Brewmaster spec) and they spawn within seconds of dying. As I was killing them, I noticed that I was getting around 3k exp per big mob and around 2k exp per small guy rested (half that for regular exp).I relogged to reset my XP/hr tracker, and as I ran around killing them, I was getting around 1.9 million exp per hour. That is 3-4 levels per hour. So, basically, you can just get to this point and not hand in the quest and just keep killing them until you reach 110.Note: I strongly suggest getting the legendary boots, which automatically turn you into a wisp after killing mobs so you don't have to mount while running around, and I also strongly suggest getting the Six-Feather Fan trinket, as it can blow everything up around you on your first hit.Needless to say, you should be in Windwalker spec (get your ww artifact first), spec into Rushing Jade Wind to aoe everything down (everything dies in seconds and does almost no damage to you), and you should be using your Infallible Tracking Charm heirloom trinket if you have one to do extra damage to demons.Beware, if you hand in the quest for that town, the legion mobs disappear and you cannot come back.Enjoy.