You could do the statue fountain, if you wanted a water feature. There would be extra spaces, and filling in with flowers could be pretty.
If your town is more modern, the cube sculpture would be a nice look, especially since it's in front of your Town Hall. Possibly a flower bed or zen garden.
The statue fountain is from snooty villagers.
I do not have the statue fountain unfortunately. And it is a medieval-esque town I should look who unlocks the fountain