[0] https://archimodels.tumblr.com/

https://magazin.wienmuseum.at/die-387-haeuser-des-peter-frit...

And the virtual exhibition of the museum:

https://sammlung.wienmuseum.at/alben/edb7nhc3tyww8dncp-sonde...

Some of the models contain a rail segment (Märklin etc.). Was he a model train enthousiast and the houses were part of a layout, or did he use the rails just as accessories? Strange that the articles don't say anything about the artist's motivation.

https://en.wikipedia.org/wiki/Langweil%27s_Model_of_Prague

https://en.wikipedia.org/wiki/Richard_Vy%C5%A1kovsk%C3%BD (sadly the article doesn't really do justice to how prolific he was, partial list of models is https://cs.wikipedia.org/wiki/Seznam_vyst%C5%99ihov%C3%A1nek...)