Kabah is located just a short drive - about 15 minutes - from the spectacular site of Uxmal and was once connected to the great capital by a sac bé, or white road. There are several structures in the process of restoration and others still completely in the "giant pile of rocks" stage. In fact, the highway south goes right through the site and you will see and can visit the area on both sides of the highway.
Smaller than Uxmal but with many of the same carved rock altars and pyramidal structures, the site is pretty and can be seen in about an hour if you explore it fully, which is not that hard given that much of the site is currently roped off due to ongoing work.
Some photos should give you an idea of what you will see.