best Facebook pages timeline cover

Hey there, i need a list of the 20 best looking facebook PAGES (NOT profiles) timeline covers. I want to do a blogpost out of this 20 Facebook pages, so i need someone, who researches for some pretty looking cover photos. IMPORTANT: i don't need a list of the most liked pages (this one i can check by myself ;)! Its not about the number of likes, its about a pretty cover photo. So a list with just brands like cocacola, microsoft etc. is NOT what i am searching for. It doesn't matter, if the brand is not well known. All what matters is, a astonishing cover image! It's ok, when the brand is an "underdog" and has almost no likes.