Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download City Night Free.
City Night v1.0.1
This package contains 85 game prefabs for creating a night city scene.
It includes pre-built buildings, road materials, banners, modular buildings, etc
All models are Low poly & low draw calls.
Textures are PSD and TGA format.
Normal and diffuse map included.
All textures are high resolution.
More than 1024×1024 size.