As we mentioned, Merida is a great jumping point to see the Yucatan. We took advantage of our rental car and drove to the ruins of Uxmal (pronounced "Oosh-mahl"), a large city that flourished from 900-1200AD. Although the word Uxmal means "built three times", it's thought that the city was rebuilt five times, and if you count the modern reconstruction - six times. Although the ruins are not as extensive as Chichen Itza's, our overall experience there was far nicer - the land was better managed, there were no vendors once in the 'park', and there were fewer overall visitors making the experience more like an exploration.
Leigh at Uxmal:

Chicken at Uxmal

Pyramid at Uxmal (note rounded corners):

Andrew, Eric, and Leigh atop a (very steep) ruin at Uxmal:

Kay and Brian below the (very steep and tall) ruin:

Unlike ChichenItza, there are no open sources for water along with very little rainful, so the inhabitants of Uxmal built cisterns to hold their water supplies. Not pictured here are the hornets that attacked Leigh while attempting to look into a cistern - two stings later, escaped without further incident.
The smaller site of Kabah (meaning "mighty hand") is only 25km from Uxmal. We were originally interested in visiting because of the description in the tourbook: "It remains unexplored, but the one great building, the Codz Poop (Palace of the Masks) lies not far off the highway to the East... The facade of this amazing structure is covered all over, in ludicrous profusion, with goggle-eyed, trunk-nosed masks of Chac - to get in the doorways, you need to tread over the masks' noses." Seriously, who wouldn't want to see this structure which celebrates well-endowed noses?
Goggley-eyed critters at Kabah


Mayan figures at kabah

More ruins and carvings:





Admittedly, we were disappointed to not find the well-endowed shnozzes, but the wacky creatures were fun to see. Not unlike Greek ruins, most of the ruins seem to have been stripped of their beautiful carvings by the Spanish or by archeologists and this has been a little dissappointing. So Kabah was fun because there seemed to be more intact carvings than at other sites.