Giant-Size Super-Stars #1 (Marvel, 1974)

It's the fight of the century! The Thing and Hulk battle it out -- in the center ring at Madison Square Garden! Mr. Fantastic, Human Torch (Johnny Storm), and Medusa watch the two titans exchange blows on this cover to the first Marvel comic to use the "Giant-Size" moniker in the title. Even though this is the only Giant-Size Super-Stars (changes to Giant-Size Fantastic Four with Issue #2), this earth-shaking premiere led to years of Marvel "giant-size" spectaculars.