I found an arrow in my knee the other day.....

....just kidding The Forstflow Lighthouse was a fun experience.

I know it's not exactly the most interesting thing to see in Skyrim, but during my second playthrough I remembered about being ambushed on the road to Solitude at a broken cart and a dead body. I avoided it by killing them all and suddenly realised one of them was a Mr. T. lookalike. My first thought was "If only he was a Dunmer."

That Bethesda hit their creative peak with Fallout 3.

But in regards to Skyrim, gotta be the platter glitch. Or that you can mine ore in first person simply by swinging the picaxe.