There were 3 sections if I remember correctly. One is the maze. I found it to be a let down. I was expecting so much more as I was moving through it. It wasn't much of a maze at all. Too linear. Also, you can get up on the walls and bypass it.
There is the typical dungeon that you can gain entrance to as part of a quest. Pretty typical, same enemies, same traps, nothing special.
Then there is the little hut.
Spoiler This too was a let down. Getting all the dragon priest masks (assuming you actually looted them off the bodies and did sell them and cause them to disappear), just to get them to that room to put on the wooden one and travel back in time. I was expecting the room to unseal and have a decent dungeon to make it through with a good treasure to be had. Instead, the center dragon face lifts up to reveal a different mask that in my opinion isn't even as strong as half the others.