I did my general review of our Viking cruise already, but wanted to have this title, so when people are looking for it, they can find this. This will take me some time to get through for sure. We did the 4 day Classical Greece extension before our cruise and then 22 days on the Viking Mars, going from Athens to Barcelona. I'll start with the extension first, and then try to do each day.   We flew from Chicago to Atlanta, had a 90 minute layover, then Atlanta to Athens, landing at aroun