I finally found your little tradehub, or for me it is rather a neat market avenue. I was such a nice experience approaching it throught the tunnel and the houses before - so nice And I found Heurazio and Otboneo there.
Sorry for being so grumpy - I thought I have been at a fomerly existing market place which suddenly vanished by mysterious events But now i found it
Unfortunately it is very far from my place. But I'll come again! I'm building a little tree "oasis" . It is surrounded by a large mountain plateau on which I want to build a huge structure. Want to work myself inside the mountain and up to the top. Don't know exactly yet but it will be weird if I wont give up on it before.
BTW - Do you know what the pipes actually are for? Is it possible to transport water with it, or is it for interconnecting machines? One could acutally build an airship wireframe from it.