A few good places to hunt for these global quests are the Ug Grash towers all four are relatively small and have two floors each with Ug Grash Tower (West Top) being the smallest and the one I have used for each of the globals.Two of them you have to complete quets to gain entry dont member which ones.
I really like how the top 100 are going to get a cut ruby chest no matter what so it should get a lot more folks to burn more if not all their stam Great job cows