Displaying the Star Wars Super Star Destroyer in a small apartment?
By using two TV wall mounts, you could put it against the wall on its side.



This guy was able to do with the LEGO Millennium Falcon(Ultimate Collector 10179).  Here's a link to some pictures that shows how he interfaced the TV mount with the LEGO bricks.  You will have to make some modifications to the kit but that's a good reason why LEGO are fun.