Seems there was a campaign in London where street-art and a interactive map were used to encourage Londoners to make more time for reading, and to celebrate London as an international centre for books.
Stencil art was used on the streets of London to confrontate public with various book quotes. There is a website that contains a interactive map showing books set in the different neighborhoods.
Well, this can surely be adapted and slightly altered for in Jerusalem, we have loads of books - the Bible, the Mishna, the Midrash, literature from the Middle Ages, the Zohar, and Modern Hebrew Literature - that can be used that refer to places in the city.
A quotation from the source near the actual place or event would do wonders.