Take a cloudy day, a quasi black-and-white motif with dominant dark and light tones — and any camera. Et voilà, without any post-processing, you end up with unintentional black-and-white photography. Subject/object of this series is the marble and granite mountain church San Giovanni Battista in Mogno, Valle Maggia, Switzerland, by well-known architect Mario Botta.

Near the end of a long and winding road, seen from outside, the church of Saint John the Baptist is elliptical in shape, with a slanting roof and black and white stripes. The interior has a dizzying checkerboard design in the same colors. Can’t do much wrong as a photographer…