Towns that grow taller
Zone some land and buildings grow on it. Homes, shops and works each go through five levels, from a cottage to a tower, and every level is its own model. There are five designs for most plots, so a street of the same zone doesn't look copied and pasted. There are thatched cottages, a Georgian crescent, a bakery, a pub called The Swan and a pottery kiln.
When a building goes up a level you see it happen, inside timber scaffolding with the builders' lorry parked outside.