Old and broken, but good. Some have plants growing on the floors unintentionally. Some look like they may be haunted. I wouldn't like to live in places like that. Imagine if someone can make a map that exactly looks like these buildings. I think it wouldn't be easy.
Those pictures are so HL2'ish, i love them.
The pics just scream for a post apocalyptic mod, the silent whistle of the wind and the zombies lurking around in the shadows..