I miss all the attractions you guys mentioned. I used to enjoy riding the Peoplemover through Circlevision, Space Mountain (remember the coasters used to glow in the dark), and Star Tours on the little tour through Tomorrowland.
My fave was the Skyway, though, at twilight just when all the lights came on - it was so pretty! We used to be able to see the matterhorn bobsled tracks, and then they redid the Matterhorn & added the Yeti and "snow" falling, so we couldn't see the tracks anymore, but it was still fun to go through the mountain.
OCSurfCity - they closed up those holes in the Matterhorn, so you don't see them anymore. The skyway used to go from a platform next to Casey Jr Circus Train, and stop in Tomorrowland, near the train station, behind the hat shop.
I also used to love Circlevision (I think I was the only one in the family besides my mom who loved it), and used to get so sentimental listening to America the Beautiful as scenes of our country passed by -- that was a great attraction - and free, too.