Oh man, definitely the E.T. queue. That thing is a walk-through attraction in itself..
There's so many for me... the movie music at Universal, the really enchanting music at the entrance to Islands..
I know this is a strange one but you know those big lights in the sky from the Universal globe? There's a name for those kind of lights but I have no idea what they are.. Followspot lights? I don't know... but at night, that's it for me. And I love seeing them from my hotel room.
When I was little and I'd see those lights, I'd ask my mom if that meant we were close to Universal. But.. it'd actually be like.. a car dealership. lol