Took me a day to complete it,the idea came spontaneously:to build a city on an airship.
It is of a medium size,and of course it has a lot of stuff on its deck,mostly small huts,chaotic pathways and stairs,like a replica of a steampunk-shanghai-like suburb. Exit under the ship,piston-doors with water-drop (for transportation to/from high altitude)
there are some chests ,anvil,and other essential stuff on it. In the back there is a small "garden" with fertile land,where you can grow plants. I also made a place for cows/pigs. Basically one should be able to survive on this ship
Also has a small landing area for airships