A window is a mediating device between our body and the environment: by simply opening or closing it, we can regulate air, light, and sight. Both climatic and cultural conditions, alongside technological developments, shape the architecture of windows. Due to its mountains, climate, and geographical position at the heart of Europe, Switzerland has generated a wide variety of window forms. Presented here is a collection of windows gathered from field research, with full-page hand drawings portraying each window as part of a complex network of elements. Short texts offer insight into the historical, technological, and socioeconomic conditions of each spatial configuration.