The Avengers #67

In "We Stand at... Armageddon!", the Avengers face a city on the brink as a nuclear threat looms over New York, while the Vision’s shocking resurrection of Ultron-6 sets a chilling new course. Written by Roy Thomas and illustrated with striking detail by Barry Windsor-Smith, with inks by George Klein, this 1969 Marvel classic captures the team at their most desperate—and the stakes have never been higher. The cover, a dynamic collaboration by Sal Buscema and Sam Grainger, perfectly captures the tension of a world teetering on the edge.