[General] Hidden models?

[Vincent_Freeman]

I've about several hidden models which don't show up in World Editor when you viewing a list of models in certain category. Yet, I've found only one hidden model via WC3 Viewer - it is "gargoyle spire". What about other models? I've heard about an "upgraded nerubian ziggurat".
Can someone write here paths to hidden models so people can actually use them?

 

[Hermit]

Everything is neatly listed and explained here.

 

[Vincent_Freeman]

Everything is neatly listed and explained here.

Thanks a lot!