Golden Gate Park is larger than Central Park and as far a I know has a much larger diversity of features tho it's doesn't feel as well maintained.
* conservatory
* art museum
* science museum / aquarium
* peddle boat pond
* rose garden
* two racing tracks
* Rc boat pond
* buffalo coral
* two windmills one with tulip garden
* soccer field
* japnese garden
and I'm sure I'm forgetting stuff. it's a great park.
I know some people will downvote this because they want Golden Gate Park / SF to stay as it is.