Ruin Explorer
Legend
However the later levels are much more interesting - miniature castles, space docks, wizard schools and teleportation mazes. Luckily our group started on the fourth level so we skipped the dull sections.
I mean, I'm pretty sure literally all those things (maybe not the wizard school?) are in the original Ruins of Undermountain. I literally just mentioned the space dock in another thread. The miniature castle definitely is, it's quite memorable (I think we're thinking of the same thing).