Sorry, this is a long one, but this is everything I worked on today. I had previously posted about this location quite a while back, but I hadn't been on the game practically at all since then.
Can you make html/bb tables or something on posts? Would help to make the post take less vertical space.
I wanted to build an underground city where friends of mine could have their homes if they wanted to play the game, but I also thought it would be nice if there was some natural light, at least in a few spots. The natural caves in Therka are quite dark, in my opinion.
Edit: And the top of the borehole has some a red igneous rock trim and blue lanterns so it can't really be walked into by accident. That's quite a fall, about 900-1000 damage.