Some pics of my favorite glitches 
Skyhold is freakin' huge when you get out of the castle.
skyhold2 by UltimateGraphics,
There's a youtube that sets it up easily, just jump out of the gate at the end, more or less, but this can take a few times to get it right. Once you're outside you can see just how massive an area it is.
skyh by UltimateGraphics,
I wonder if this was originally supposed to be developed. You can get out all the way to the mountains in the distance, but since you can't ride a horse, it's very hard when the ground gets like glue. But I've worked my way out to the edge. It took 2 hours, roughly.
Then you get over to the side, where you can see Skyhold waaaaaay off in the distance below with the purple missing texture. This is only about 10 percent out to the edge.
skyhold1 by UltimateGraphics,
Behind where she stands, this is the huge area where they get stuck in the snow on the way to Skyhold when leaving Haven.
sky1 by UltimateGraphics,
If you keep going, you get out past all the mountains to a plains type area that gets very rough. I had to use the level 1 evade technique to make her jump over all of it, since I can't use the horses here.
Seriously, the glitches in the game are as big if not bigger than the playable areas. Emprise is just as big as Skyhold, mostly unused. What was originally planned, I wonder?