What's a fantasy game without Dragons? Who ever wanted to play Dungeons and blanks? Big, nasty tempered and generally given to thinking of you as lunch, these are some of the most fun pieces to collect and paint. After all, you only need a couple to make an army quake, unlike with goblins.
This gallery covers Dragons and Wyverns, but includes a Dragon Ogre and a Dwarf.
The definitive guide to the Citadel Dragon ranges is Tony Mansfield's guide on the CCMWiki.