watertight tunnels: no
galleons: likely to not happen without mods because there's no way to build them inside a normal sized shop - they're just too big!
drawbridges: possible with mods, not likely to happen as part of vanilla but maybe.
Not officially, and we've told the guy in charge of maintaining that page to clean it up heaps of times, I'll go send an angry email to him now and if nothing gets done, get MM to make the change. I don't have access to the web server at this point.
Visit the Beginner's Box
Introduce yourself, read some of the ins and outs of the community, access to useful links and information.
Comments on Profile Post by lukepop