Always had an interest in Space and Astronomy from when I was a kid (another SciFi enthusiast here Jeannette

), used to read up everything I could find on it, but could never afford a scope or even bino's. First view was of the moon through a brass telescope on a lighthouse in the early 70,s. A dozen years later in Aus I got my first scope, a 60mm f15 refractor and saw Saturn, Jupiter, the jewel box and Orion and I was forever hooked.
So my list would be
1 The moon
2 Saturn
3 The Jewel Box
4 Orion Nebula
5 Omega Cent through the 20 inch at the Bunbury Observatory, that was the clincher