Kabah and Labna are two more of the Puuc (hill) cities of the Mayans, located near the larger city ruins of Uxmal.
Kabah was another very interesting site to visit. It's quite near Uxmal. The "Palace of the Masks" is the most famous structure here, being covered with stone-carved mayan masks, but you can easily spend a couple of interesting hours exploring the site. Don't miss the large stone Mayan warriors on the "back" side of the Palace of the Masks.
You were free to climb all the ruins. If you weren't spoiled by the better ruins at Uxmal or Chichen Itza, you would think Kabah was a really great site.
Unfortunately, we were running out of daylight and really didn't have time for much more than a cursory look around Labna, but it would have been worth spending more time at.
There are almost no facilities at either of these places, Kabah especially. It had a few postcards and a Coca-cola cooler in the entrance and that's about all. There was a little bit more at Labna, but not much.
Free admission on Sundays. We didn't see any guides hanging around for hire, but we didn't inquire either. But we were there late in the day.