Open spoiler for why
(This one's more positive for me and a little bit more at the expensive of someone else)
I was hanging out in Diessa Plateau with a guild member when this person asked how you get that South East vista, near Breachwater Lake. We trolled her for around 20-30min with vague responses such as "just walk up to it, it's like every other poi. Once you get close enough, it just automatically activates", and "turn your character towards the objective, hold W or tap R, use A, D and spacebar as needed".
Since then, that last phrase has been the guild's official method of completing any objective.
That same guild member and I, shortly after release, found there was an area of the map we couldn't figure out how to get to in Dredgehaunt Cliffs(It was the skritt caves). We thought maybe you had to climb the mountain, so we went up on top and soon found out we weren't supposed to be there. We could see down into the caves and saw all sorts of graphical glitches, eventually finding a way in through an actual hole in the roof.
I've had quite a few good experiences with getting outside of the normal playable area of different maps(Lion's Arch, Caudecus' Manor, and Mount Maelstrom to name a few), but there's nothing specifically awesome about them.
Also, pretty much any dungeon run I've done with my guild has been pretty memorable, espcially the OP boulders in AC story.
Edit: Oh yeah, and my first time in Orr left me awe-struck. It was immense and incredible, but now I can't stand the sight of it. I think I may be desensitized to epicness.
Edited by Gerroh, 14 December 2012 - 05:49 PM.