Athens would have to be number one on the list for me.

Remember the first time I rented a car in Greece and paused for a mother and child who had begun to enter the marked crosswalk. She looked at me in astonishment as the taxi following me slammed on the breaks to avoid crashing into the rear of the car that I was driving. Never paused for a pedestrian again that trip or any other time I've been to to Greece. Too dangerous.