This week Lois and I went on a day trip to the Mayan ruins of Uxmal and Kabah. It was 9.5 hours of hot, hot, and then some air conditioned van. Not an ideal tour. Sixteen people but ten needed Spanish, and the guide obviously enjoyed that part more because his English was poor. He would talk for fifteen minutes in Spanish, and two minutes with us. But it was fascinating to see places built around 500 AD.
There are also incredible murals in the Palacio de Gobierno by Plaza Grande. The murals depict many of the struggles resisting the Spanish invaders. The wealth of Merida came from the plantations that grew sisal for rope, and they used the Maya as their slaves.