Just joined, so this wow moment didn't happen recently.
Early in my game, I was traveling west across the the great plains between Whiterun and Rorichstead, to let the Al'kiri know where the women they were looking for was. I was zigging north and zagging south, marking each landmark on my map to return to later, when two skeletons came barreling at me over a small rise in the land.
My first arrow crumbled the nearest skeleton, but my second whistled between the ribs of the next(literally made a whistley noise-wow moment#1). So I drew my blade and fell the creature with two slashes. Thinking the coast was clear, I sheathed my dull iron sword and relieved the skeletal beings of the change they carried with them in their past lives. Then a third ghoul come over the rise, in the middle of bringing a battleaxe to my face. I FUS'd him and unleashed my sword a second time, felling the skeleton as I withdrew it.
Only as I returned the blade to it's scabbard did I wonder what skeletons where doing in the middle of the plains of Whiterun hold. My questions were answered soon, for I found a dead mage, along with his spell tomes which he no doubt used to summon the skeletons. Twas my second wow moment, finding an answer for something that would have otherwise been strange. I gathered up his belongings, including the tome, a steel dagger, and his robes that I planned to disenchant for the abilities they bestowed.
I think it's awesome how random events in Skyrim immediatley convert themselves into organic stories.