Here is New York City Environment that we created as Leartes Studios. I was responsible for leading the project, environment props, and Unreal Engine implementation of vehicles, creating blueprints and materials. I've involved in almost every part of this project. Congrats to my team!
It is available in the Unreal Engine Marketplace:
https://www.unrealengine.com/marketplace/en-US/product/1950s-nyc-environment-megapack