The "three bridges" in Color-Key

The "Three Bridges" of Ljubljana with the red Franciscan Church "Annunciation". How do you find a good position to be able to photograph this motif at all? The town house of Ljubljana is directly opposite and the question from the gatekeeper, whether we should be allowed in to take pictures from the window from one of the upper floors, led to the meeting with an extremely friendly secretary of the city director.  After a few in-house calls she took us to an office on the top floor. From here, photos of the "Triple Bridge" could be taken with a 20mm Nikkor. The Franciscan Church "Annunciation" comes into its own in the Colorkey version.