New city?

I got now a floating island for some time but didn't really knew what to do with it so i maybe thought of a city I could make.. Got a mine and a farm on my island atm. Maybe anyone could suggest something else i could build on it? Or maybe a idea to make something else out of it? I dunno really. Currently busy with a building with some puzzles in it too just kinda finished with a jumping puzzle and now gonna try to make a maze. Suggestion for another puzzle i would appreciate too.

This is what it looks now

hotel, apartment, pool, indoor pool, roller coaster, minishop, castle ... ill think of more soon

A roller coaster would be awesome! Oh and I might buy a plot there once your done

Thanks for the ideas