Go outside upon the Empire State Building. Climb at least to the bottom of the step-like things towards the top. Now, look for the tallest building BESIDES YOURS! Note:This other structure has a bunch of stone eagle heads on the corners. Climb up there and take a good look at the place. Seems familiar, doesn't it? Do you remember back in the first Spider-man game when you defeated Vulture on this very building?! Look around on the layers at the top of the building for a large pile of green feathers. Obviously, those feathers USED to belong to the Vulture.
Submitted by a Zombie (actually, John Steelman)