Thanks Ben. Actually, they have restrictions on photography. For the first picture, the guide had to pretend to look away while we all snapped pics. The second place (the latter two pictures) I had to buy a special pass to take pictures. In both circumstances, tripods were not allowed. These were hand held with my Loxia 21/2.8 lens (all three). I did also use the Voigtlander 12mm/5.6 lens as in the image below, but I found the Loxia's faster aperture and better overall quality usually made it the preferred lens I had with me on that trip. I do try to keep the camera level when shooting architecture especially using ultrawide angle lenses, and I find the Sony A7rii's built in level quite a convenience especially at such times.
The first one is the Klementinum Library. The second two are at the Strahov Monastery--the baroque hall and the library. My understanding is that yes, you can access the books with special permission but I don't think they are allowed to leave the premises. I suspect 99.999% of folks visiting are tourists.
There is an issue with Uploading Photos (attachjments). I am not sure what the problem is, and I am looking into it. You can still try to Create your Threads and Upload your Photos, but it is hanging up during the Upload.