Our last day in Oaxaca City. Another great breakfast (we've been somewhere different each time), followed by the Governor's Palace with its impressive mural flanking the main staircase. Every governors palace seems to have one, though this is not by one of the usual big three (Rivera, Orozco or Siqueiros) - it's by Arturo Garcia Bustos, who was a student of Rivera and Kahlo, and is still alive today. To its right is the rather incongruous (and reportedly) Biggest Tortilla in the World, 4.4m in diameter and decorated, like the mural, with notable Oaxacans. It's now 15 years old and well past its sell-by date.