I have historic photos that I want to turn into a 3D image/model.

I am new to using a computer to edit/enhance photos, etc. I live in Asheville, NC, and I am trying to document a historic area of the city (known as the "River Arts District") before it gets developed/renovated. I have gotten literally hundreds of photos from the local archives, and I know that I easily have enough of them to create 3D composite representations of all of the buildings-I can literally see the layout of the area in my head. And about 25% of the buildings are still standing, so I have plenty of reference points to keep the scale and perspective in check. But I am not experienced enough with this kind of thing to know what software/app would best be suited to my specific needs. I am a fast learner, but I need help crossing the threshold from the concrete world to the virtual so I can share the map in my head with my community. I would prefer something free, since I am on a tight budget (I am doing this project with my own funds and time), but I can pay for the software if it's not too expensive. Thanks in advance for the help and/or suggestions.