This would be a fun 3D model for the kids to make. 3D City by Anna Paschenko | Abduzeedo Design Inspiration
Build a town by Elia Golovchak, via Behance
I'm happy to share with you this free pack of 30 isometric city map elements created by the team at Roundicons...
Isometric Map Icons - Buildings and Places | Buy and Download: http://graphicriver.net/item/isometric-map-icons-buildings-and-places/8081725?WT.ac=category_thumb&WT.z_author=Orange_Box&ref=ksioks
Nice color palette and smooth style on this isometric illustration.
Informe Corporativo Metro de Medellín 2014 on Behance
Isometric Map Generator on Behance
Chaos Sketch by Miquel Tura Rigamonti, via Behance
Create A Detailed Isometric Building in Adobe Illustrator – Tuts+ Premium Tutorial | Vectortuts+