I finished the collected "Watchmen" yesterday (I
told you I'm a geek), and after seeing the images in this topic's links, it struck me that the creature in the WM comics is very Cthulhu-like, though also part Cyclops (and I won't get into the disturbing sexual imagery that results from this combination, yikes).
This is OT for Leviathans, but since I'm currently watching the 1897 storyline, it made me smile that the last stop in Ozymandia's journey around the world was Alexandria.