4. ACTION COMICS #662 (1991)

After years of looking like a complete fool, Lois Lane finally realizes that Clark Kent without his glasses on is Superman. This cover gave a great glimpse at the shocked face of Metropolis’ most inept investigative reporter when she finally puts two and two together.

And while most people with two functioning cerebral hemispheres would have figured it out decades ago, fans waited decades for Lois to finally cross the finish line. Worth the wait, we think.