Compared to, say, a 747?
Starship Dimensions is one of my favorite science fiction sites, and beautiful in its simplicity: it simply shows the size, in exact proportion, of all major objects (and some creatures) in science fiction, from teeny little Star Trek shuttle craft to the Death Star and beyond.
Where else can you see that a plasma bug from Starship Troopers is just about the same size as a Jawa sandcrawler? (And, for the full 10-year-old experience, you can move them around your screen, at least in Internet Explorer.)