On this server I play on, I've began to live ontop of the Nether roof, Which is complerely out of bedrock. It's tough - Farming, Pigmen spawning and so on, But it's also very helpful. I don't live up there often, But it's become really fun and different ect ect -and I re-learned how to do it.

Imgur :
http://imgur.com/a/edVUM