Looking for musical theater songs about imagination

Hi, I’m a bit curious about musical songs that describe something imagined. My English isn’t very well, so my wording might not be accurate. The examples I can think of are “Part of Your World” from *The Little Mermaid* (where Ariel imagines herself becoming human) and “No More” from *Tick, Tick… Boom!* (where the two characters imagine themselves living in an apartment). I wonder if there are any other songs with similar storylines.