I did a real quick search, and several people who have visted the modern city say that this mill (which some people say, I believe erroneously, is Pavlov's House) was the only building that was left standing in Stalingrad after the battle.
Well, I don't think that is probably true because in Time-Life's
Red Army Resurgent (1977) by John Shaw, there is a two page photo of some Soviet soldiers celebrating in a Stalingrad square after the battle, and there are buildings around the square, and some of them seem in pretty decent shape; one large building looks (a side view) intact and at least the facade of a city building is standing.
Who knows . . . CNN wasn't there to film it.
Beside the Stalingrad museum in Volgograd is a red brick building full of bullet holes. This is the only (to my knowledge) remaining building from the former Stalingrad. Yakov Fedotovich Pavlov is credited with holding this building against the Nazis for an amazing length of time, and against all odds. He is one of the most famous heroes of the battle-
(From a Tourist who visted Volgograd within the last few years).
Now the brick in the final photo I agree does look darker; still, in most of the photos I've seen the bricks do look almost a blanched pale color.
I only have color two photographs of Stalingrad in a book on the Eastern Front; one shows German soldiers in the Tractor Plant.
The bricks seem to have, at least in this factory, a light brownish red color, but some of the bricks which have been broken up into rubble have a pale greyish white concrete appearance.
In a second photo of a some civilians living in a ditch, I see a light brownish (
not a deep brick red) chimney stack in ruin, in the distance city buildings (not individual houses) that have a white appearance, though from the distance it is hard to see what exact pale color they are; then there are light brown, whitish, and blackened scorched rubble bricks in the foreground.