This project is what I've been hinting at through my project the nether brick mansion. It's on the Bizzcraft server and consists of a series of "clouds" built by me in SMP. The citizens have choices to what to build as their floating backyards, there are rules to the city that if broken, can lead to some large consequences. Griefing or stealing, can result in a ban because we have a head-mod living next to my house. You can see the city from the ocean which it is located over. With boat access to a taiga, jungle, and forest biome, you can basically get as many materials as needed. All clouds have been built by me using the /fly command and snow blocks from the snow farm in the center of town. The town has many residents, along with a farm, shop, police station, and a couple of xp farms(some of which are private use only).

Rules:

1. No Griefing
2. No Stealing
3. Build ONLY on your own cloud
4. No looking through others chests/homes.

There is a warp to the shop which is /warp CloudCity

There is no way to get out of the shop, don't worry that is a measure we have taken to reduce spam for asking to build clouds, and to prevent griefing. My house is included in the photos, and can only be enter by me. (you can enter if i'm there and you've asked)

The Dock is at ocean level and can be reached by water elevator, there is also a minecart rail line leading to my beach house/other village/forest biome. The jungle biome can be reached by swimming towards the police station.