Outside the church is a beautiful piazza, shaped like a kite and cobbled, and from here you can appreciate the chequerboard pattern of brick on the outside of the church, and the ubiquitous terracotta roof tiles (that, along with its strident left-wing politics, give the city its other nickname, Bologna la Rossa, "the red" ). The heavy scent of incense inside the gloomy chapel gives way to the light, flowery hint of wisteria outside, wafted from the clusters of violet blossoms that drape themselves along the balconies. Like so much of the city, the houses lining the piazza are coloured in soft, warm tones of blusher, eye-shadow, foundation and lip-liner the palette of a professional make-up artist. The matte finish of the plaster gives the walls a sort of powdery quality, as though the stone would be as warm and responsive as skin.