July 30, 2007 - August 2, 2007

Jackson, Madison, Washington, Cleveland, Lincoln, and Monrovia. I didn't see it, but I bet Jefferson City was in there, too. Very presidential.

July 23, 2007 - July 26, 2007

Bordeaux, Tacoma, Odessa, Wellington, Mumbai, and Vientiane. Maybe they went back to a random assortment of places.

July 16, 2007 - July 19, 2007

Kaduna, Belfast, Fukuoka, Montreal, and Rota. I can't see a theme among these. Rota and Fukuoka aren't major world cities. On July 18, when Matt Groening was a guest, the globe also included Springfield.