I thought I'd share a few photos with you.
The first thing one sees when entering is the Magician's Pyramid and it is unusual in several ways. The layers of the step pyramid are oval, rather than the usual rectangular or square shape. It was a common practice in Mesoamerica to build new temple pyramids atop older ones (three times here), but here a newer pyramid was built centered slightly to the east of the older pyramid, so that on the west side the temple atop the old pyramid is preserved, with the newer temple above it. That little doorway near the top was made by explorers entering the pyramid.
Here's another view from the west side showing the older temple steps and doorway and the newer alter on the top...
This is the Nun's quadrangle, so named by the Spaniards when they showed up in the 1500's.
This also gives an idea of how absolutely flat this area is.
If you are ever here, put Uxmal on your list of places to visit.