Two facts I learned from a Snapple cap and later verified with Wikipedia: 

1. In addition to being the coldest and windiest continent, Antarctica is the driest continent.
2. Antarctica is the highest continent (has the highest average elevation).

Unfortunately, both sources of information are incredibly difficult to verify (aren't some Snapple facts false?), but like most things on Wikipedia, these facts sound believable and there's really no reason for them to be false.  Either way, quite interesting.