I have been lusting after a decent visual interpretation of Ringworld ever since I read it decades ago... I was thrilled to hear Halo was set on a ringworld and - because I am diehard Nintendo guy - had to go to a mate's house to see it on his XBox.. I spent ages wandering about looking up, but it wasn't quite what I was after and hey, given the era, the graphics were not up to much. I am still amazed it has not been well done in a film or game or VR to this date - at least afaik, i am open to suggestions. (One of the most visually plausible habitats in film imho was in Elysium and I always feel this film has been a little overlooked. The parallels with the modern world's refugee issues are overstated but I thought incredibly compelling.)