Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Detailed Modern City V.2 Free.
Detailed Modern City V2 v1.0
“Detailed Modern City V.2 ” This package contains 115 game objects including houses,roads,phonbooth,dumsters, road light,trashcan,tree and many other props which are required for creating a modern city.
‘This package is compatible with Unity 5″
Day and Night scene are made and it looks like as video and screenshoot. So this package will be helpful for creating different types of city.
you can contact me freely : firstname.lastname@example.org