At nightfall – currently my favorite time to photograph – the town of Siena changes its appearance. The shapes of the buildings remain the same (of course), the colors change completely instead. Palaces and churches are lit up, stand out in the dark and get new colors. The new colors depend on the type of lighting. One thing I particularly liked to do in Siena was to walk and to photograph the many narrow streets at night. The darkness and the lit street lamps added an air of mystery to the old medieval alleys of this outstanding town.