1. The Skyway. Nothing like a bird's eye view.
2. If You Had Wings. Classic 70's. Just miss it. Nostalgia.
3. 20,000 Leagues. I know why it's gone. But it was really really cool.
Basically I miss most of the 70's-80's Magic Kingdom removals. The MK had a flavor that is much different from now. Times change. I also strangely kind of miss the large trees that were at the hub. Yes they partially blocked the castle from Town Square, but they gave a shady appeal to the area. I also miss River Country, Discovery Island, Symbiosis,..all the old stuff.