On Pandaria, in Shrine of the Two Moons and in Shrine of the Seven stars, in the big room, in front of the stairs, there is a little ledge and, on top of it, a kind of balcony.
It could be nice to enjoy the view from there or, if you want to tease your team-mates, an engineer can put Blingtron on this ledge. All the players will see the blue exclamation point without finding out of where this #”€&#(§! Blingtron is.
You can do it on the opposite faction’s balcony too, but of course… the risks are yours to take.
The trick is ridiculously easy to do.
You have to know how to make a loop with your flying mount, though. If you don’t know how to do it, check out this tip.
Then, the only thing you have to do is to be outside, on your flying mount. Fly through the gate in the middle, make the loop and… bing… You land on the platform.
This will not work if you have too much lag, you will be dismounted before you reach the ledge. But if not, it is an easy trick to do…