edit: This is actually an edited image I found years ago. I find the low poly bunnies slightly more funny than the original, which had skeletons.
Back in the day, just the idea of having an entire 3d world inside a computer was absolutely mind boggling. The first time I moved a cursor and the camera rotated, the entire game world shifting, I lost my mind. I remember thinking "how did they fit this world in there? How did they build this?"
It's what sparked my interest in programming.