CBS lists 4 continents and 9 countries.
continents: North America, Asia, Europe, 1 more (Africa?)
countries: USA, China, Malaysia, Sri Lanka, Italy, Spain, 3 more (Switzerland?, France?, eh?)
Also, where did Orvieto and Bern came from? Edit: Found Orvieto via Wikipedia. Bern?
Edit: With China, Malaysia, Sri Lanka, and Italy having 2 legs each, and the last one reserved for the US, the last four countries would be visited within 3 legs.