Barcelona is one of the most polluted cities in Europe. That's why they declared a state of emergency for air pollution af few weeks ago. On Sundays, they usually have a marathon or similar event and close of the city center to vehicles. All that remains is tourists and the infamous Romanian pickpockets. Avoid Barcelona; avoid Barcelona on Sundays like the plague!!

Livorno is home to the second largest indoor end consumer market in Europe. It's not that big and it smells awful as half of it is a fish market. Some decent shopping around via Grande and the cathedral.

Marseilles is the most dangerous area in France outside if the Parisian suburbs. Don't go exploring the city by yourself! Get on a bus in the cruise terminal (it's a safe area) and go outside of Marseilles. Avignon or Aix-en-Provence are beautiful and much safer.

Naples is a nice port to explore by yourself, on foot. Go get an espresso or a pizza and walk around the old town. It's dirty in some areas, but once you're inside the old town, most of it is ok. IMHO the coffee alone is worth it.

Not a fan of rocky places with nothing going on. Don't visit unless you like places like Alcatraz.

Mich better than expected. Beautiful parks, wide avenues, lots of vegetation. Very cheap, too.

Liked Tunisia. Lots of Police to escort you to the train station and even take the train with you to make sure you get to destination unharmed. There were no threats that I could see, but we felt welcome by this much attention to our security. Went to see Carthage and Sidi Bou Said and had no issues other than being asked for an outrageous $2 for a lemonade.