Seeing as how I've exhausted my creative potential in my Creative Minecraft singerplayer, do you good people have any suggestions as to what I should build? 'Cause I've already built the world's largest F-ing house (when it was just a foundation, I had the rendering mist on the opposite side with normal render distance on) and a trans-Minecraft railroad to boot. Even got a nice little NPC miner outpost located at the bottom of a ravine (linked to the railroad as well).
I always build a bunker on every server I go on. And not just a series of tunnels either, something that you could actually survive in. The one on my buddy's server has the capacity to hold the whole server (20), and feed them too!
Build trenches and trench network. Get some friends and spawn some mobs and you will be having a zombie ww1 apocalypse.
First time I played minecraft me and my friend built a giant nazi castle complete with a german style village, a giant oven, and bunkers and defences along the coastline, after that we went to a hardcore survival server and made the most politically incorrect base ever, wish I had some pics, was really great. EDIT: found some pics of it http://www.reddit.com/r/HardcoreSMP/comments/oxjnv
Use the new redstone/glowstone in the new snapshot to create a sky underground that slowly brightens up like dawn and the sun is rising.
I always like to build huge castles but for some reason I get bored when the walls are finished and then I start over. And the flat map needs to be deeper, I want my own complex tunnel system.