When Laboredanus became a County (involving the Baron levelling up to Count, and in our case it was a Countess), it was decided to ignore the laws of physics and begin something strange and beautiful. They called it the "Physics-Ignorance Room".
A vast pit was dug, larger than had been dug before, to create an underground space. The glass, charcoal and sand industries were ramped up, and much to-do was started. A single staircase was all that was necessary to hold up this vast edifice... some dwarven engineers weren't sure whether this was due to extreme faith in Armok or simple ignorance of physics making the impossible possible. After the pit had sat for a few seasons to allow wild plants to begin sprouting, the pit was floored over with green glass, and the farmers set to work creating a bountiful wonderland of exotic flora.
Meanwhile, with the staircase built, the second phase... the production of a tower... began. Five stories of marble rested on the glass staircase, each glittering with gem windows and full of sculpture and thrones. At the top, a glass jut was created, which stuck out into space for sixteen squares (I don't know what that equates to in human feet), and a large glass observation bubble was built. On top of the glass bubble was sixteen iron statues.
A copper cage was situated, and filled with goblins, and it was from there that parties celebrating the final dwarven victory over their greatest enemy, Physics, were held. Dozens of dwarves crammed into the glass chamber, drinking and gorging themselves, cackling at their own hubris.