JFrazier, I had actually tried that before, but they got lost. The problem I was running into was that the walls are a good 3 or 4 feet thick, so the "realistic" arc that the door would describe was almost entirely swallowed up. I tried clearing out the sections of wall above where the door would sit, but couldn't stomach the loss of that manly lintel above the door.

I eventually gave up and decided to come back to it later and while marking where the doors were going to be, I realized that I kinda liked the little temporary markers I had dropped down.

JDC, that room is a supposed to be a series of old cisterns. One of them is currently full, the other three are being used as holding pens.