City away with Crouch must be it. The away end bulges about 20 feet in every direction. Blood sweat tears and probably jizz everywhere.
Also Klinsmann at Anfield 95. Think footage is limited (goal was at Kop end) but there is a few seconds of people genuinely crowd surfing
Edit. Here it is
I will always regret not being at that City game. The elation is nowhere near the same if you're not there. I've made sure not to miss a big game since then.