The video is so long in length that it is possible that you never made it to the end or just couldn't hold it all in memory - I actually forgot about the Mars part until I rewatched it recently. I knew about the structures and layout on Mars anyway but just forgot about it being in this documentary. Its a video that can easily be watched 10 times and still need to be watched again, I would make a modern version of it if I had time and a team to help. I just followed you, since - well people who have watched carl munck are few and far between :)