My most recent build is this very tall “beach house” for my 16 custom minifigs that I made for this contest at Eurobricks (which, again, looks like it falls short of the other great entries in the voting…). I built the rooms in the same fashion as I do for my collectable minifigs modular display. The top floor is different, as it spans two modules, and the base and facade part are of course different as well. The base is rather massive, so it stands quite solid. Here’s some pictures.
For more detailed pics, check out my flickr stream.