Produced yearly during the 1990s as an alternative to the Sports Illustrated Swimsuit Issue, the Marvel Swimsuit Specials were essentially books of pin-ups. Superheroes and villains apparently decided to chill out for a week, wear almost no clothing and catch some rays before they got back to beating the hell out of each other. They barely make sense, but are a ridiculously wonderful thing to behold. (ComicsAlliance)