I'm happy to share with you this free pack of 30 isometric city map elements created by the team at Roundicons...
Trivify mobile app on Behance
Illustrations for infographics on Behance
Ski Resort & Snowboarding by Robert Filip, via Behance
Japan City on Behance
potion.09 by sangjoon yoon, via Behance
2D Game Art for Programmers: Building isometric art in vectors - step 1
Flat fruits icon by kong yunlei, via Behance