Go grab a free urban pack for Unreal Engine.
This Modern City Downtown with Interiors pack is filled with optimized details allowing users to set up all kinds of urban projects. The pack features 355 unique models with modular building parts: vehicles, interior (Restaurant / Bank / Metro) and exterior props, environments, and 45 different decals (Dirt/Dust/Rust/Graffiti/Neon/Water/Signs, etc.).
Features:
You can learn more and get the pack here.