Deleting a city but recovering original geography

[CogitoErgoCogitoSum]

I think the header speaks for itself.

When I delete an old city and went bankrupt, I end up with a blank, flat square... instead of the original regional geography.

I want to recover the original geography... because... I liked it, or whatever. Doesnt matter. I just cant figure out how to do it.

Sure, I can and should and do reconcile borders, but its not the same.

[Builder]

Yeah. You simply have to go into the city you want to destroy, then click on the God mode or whatever it's called, and click the button where you see a detonator depicted. It's at the top of the options you can pick.

The result will be everything deleted, except the connections to the other cities I think, but that you can solve by slightly raising, lowering or flattening the land, so it's not hard.