While travelling in France, we stayed in Dijon with a lovely couple in an AirBnB. They suggested we go to a nearby town, Beaune. We were walking in Beaune when some people started to look across the road and up to a first story window. A couple of people spoke to us in French and then signalled us to look up. A magical moment shared with the people in the street.
Not really a Cat and not really in a window but three cats sitting outside of a window