1st arrondissement, Paris, France

Rue de Rivoli

A kilometre of the Paris boulevard past the Louvre, between rows of tall stone buildings.

Wide, flat and straight, with arcades along one side and nine junctions in a kilometre. 274 buildings take their roofs from aerial photos, and the streets around it are built too. A good road for a slow cruise at night, when the street lamps and windows come on.