Im building a city on various floating and fixed mountains.

The will be a functioning rail system.

There is various tunnels and rail systems that go to ground level.

Ground level dock that is in a large lagoon.

Sky Dock for airship, (to be started)

Man made raised lake.

No furnishings yet

Hot air balloon dock

Air Ship Dock

current ship in dock, lightly modded ship from
http://www.planetminecraft.com/project/indomitable-class-airship/

Ship dock to come

Tree house from my other project is on the ground
http://www.planetminecraft.com/project/tree-house-hidden/

Welcome suggestions for types of buildings to put in the city.