Some wonderful person uploaded scans of every Playboy Playmate centerfold to imgur. It's an amazing collection, whether your interests are prurient or lofty. Kind of amazing to see how our standards of hotness, and the art of commercial erotic photography, have changed over time.
Every Playboy Playmate Centerfold [contains nudity, duh]
And below, a video that contains all 746 of these incredible shots, created by YouTuber Ryan Powers.