Good way to unload assets and memory?

Unity Engine
1

Apart from
Resources.UnloadUnusedAssets()
is there any other way to unload meshes and textures from memory/graphics memory?

I have quite a big world with many deactivated objects in it. And it seems to be taking quite a lot of time (half a second) to search through the tree and do whatever it is it is doing using this function.

Can’t I unload a single asset of my choosing?

Also, is there any way for it to tell me which assets it has unloaded?

(Unity 4.7)

2

Destroy();

3

Does that unload it from memory? What does Resources.UnloadUnusedAssets() do then?

4

That will clean up unused items in memory. They will (should) get cleaned up eventually, but that will do right away.