Spectromagic.
The first time I saw it, was 16 years ago. We were stood at the end of main street near the station. In those days I didn't have the Internet, and so didn't know what to expect. (In fact had the Internet been invented then?)
All the lights went out down main street and the music started and the lights on main street lit up again and out came the parade. It was the best thing I had ever seen. It brought tears to my eyes. It was fantastic, and seemed so magical.
When we returned to Disney last year for the first time in 15 years, I watched the parade from Fronterier Land. It wasn't the same.
When we go again, I'm going to go back to the top of main street. Even if it is packed. To see if it still has the magic.