Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Shopping Mall Pro Free.
Shopping Mall Pro v1.1
This is the pro version of our mall scene.
The package comes with parts of our city buildings playground and pine tree collection. The whole broadleaf trees package and VISky 2.1 (sky-system) is also included in this package.
For more information about VISky have a look at the VISky package in the asset-store.
Collision meshes for ground and walls are also included.
Texture sizes between 512×512 to 4096×1024.