Inspired by Risus and Dyson, I've started geomorphing, but as I mostly enjoy DMing urban environments I thought I'd try something a bit different. So here are the first in a series of Citymorphs:
Every city has to have a big cheese and they need a nice place to crash, of course the hangers on and other courtly types need somewhere to live close which makes for a similar architecture and style.
The people have bread, so give them a circus. Print off 2 of this tile and you have a whole colliseum for them to while away the hours watching chariot races.
Maybe your city is also a port, if so it'll need somewhere to land those ships and some warehouses to store goods and cargo. It'll also need some sort of harbour master's buildings to control what comes in and what goes out.
With all this commerce going on there's got to be some sort of tax collection and administration going on. Civil servants like nice buildings to make them feel important so grand architecture and domes are the order of the day.