Add some personality to your 3D cities and towns with this huge supply of restaurants, showrooms, banks, grocers, boutiques, theaters, museums, and more. These street-level facades can range from high-end marble entryways to boarded-up windows with graffiti – and they can all be customized to your liking with different awnings, signage, decorative plants, and other common storefront props.

https://assetstore.unity.com/packages/3d/environments/urban/polygon-apocalypse-pack-154193

Pack contains 18 mountains that you can use to improve your scene or just make it more beautiful. Textures at a resolution of 2048?2048 and microdetail allow you to create a more natural sceneries