Nerd is as nerd does

This is perhaps the ultimate sci-fi geek site.
It compares the size, as best as can be determined, of every science fiction vehicle known to man.
Except for the Death Star, however: "First, the Death Star is so friggin' huge that it doesn't fit on even the largest chart I've made. And that's even for the low-ball estimate of the size, which brings me to my second point: No one can agree just how big the Death Stars actually were, so there's no point in doing their sizes."
Rico says check it out.