On my way home my home I try to vary the bus line, get off at different stops to explore the city. This time I got of at “Paul Bert” of the line C4. And just on the other side of the street I saw these buildings with their house numbers.
Now, here is the question: which number is missing?
Besides the little quiz this shows the side of modern life in square boxes with some ornament of green. This could be at many places in the world – it happens to be in Rennes.