“Journey Into Mystery” Billboard – Thor

Billboards are apparently the perfect place for directors and visual effects artists to slap hard-to-spot Easter eggs for fans. Marvel didn't just utilize them in Iron Man 2, but in Thor as well. Only this time, it wasn't a nod to a character as much as an entire line of comics. Journey into Mystery was initially published by Atlas Comics (and later by Marvel) and was a horror anthology that introduced audiences to The Mighty Thor in 1962. Four years later, Journey into Mystery was renamed for its title hero.