Do Barrows make good adventure sites?

 A relatively short post today on the question of if barrows, as they exist historically, make good adventure sites for fantasy rpgs?

The problem is that the types we traditionally think of are entirely lacking in loops, giving players little meaningful choice in the way they explore them. I have seen this linear dungeon problem in a few of the products I have reviewed. If anyone can shout out some examples of real world barrow layouts that would make good rpg adventure sites I would be interested to see them!