Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Hand painted Castle pack Free.
Hand painted Castle pack v1.0
Stylized and modular assets to create your own Castle environment!
Includes an example scene to get you started
_Models range from 40 to 1600 triangles.
_Castle and building parts are modular and fits together
_Roofs and flags color can be changed easily.
_Props: Barrels, bench, crates, flags, pot plants, etc…
Also include cliffs and sea for exterior scenes.