This. In Spain, the Marseille's counterpark (shitty urban black hole) would be the 3000 viviendas (3000 homes) in Seville, or maybe some barrack based 'hood in Madrid far in the downtown.

And even with that, I would be safer if I kept a low profile with my head down and by not getting into troubles and by avoiding some taverns. Try that at the worst places of any big city in the US.