Welcome to the city of the Chaos! In the old district there are no rules, no sidewalks, no traffic signs, no traffic lights; and the good thing is that everything works!
Pedestrians, motorbikes and cars share the narrow streets in a perfect harmonic chaos. Just a sample, the street in the picture is a two-way street; even though there is hardly place for two cars.
Wider streets have sidewalks, but as you’ll see in the next photo sidewalks have a different meaning here ...