Hanging pictures
The best way to do so would be to install a picture rail with screws into anchors. This would give flexibility to hang them in the location desired. Otherwise, an anchor and screw, or a masonry nail, at each location could be used.
We had several pictures and other items hung on our basement walls with nails.
If I were building a concrete house, I would probably mount steel hat channel, and install drywall for better finished look.