I made this Battle Platform, more of an upgrade to an older diorama I did years ago. If you can imagine it upside down, minus half the slats on each side, and minus the deck platform, that's what it used to look like.
It was fun, and pretty easy too. I plan to make a small staircase soon.
There's a few more photos at my Flickr account.
http://www.flickr.com/photos/deimos-remus/