A path from Codz Poop [1] leads to the raised platform where the Palacio (Palace) stands. A broken set of stairs leads to the top, though climbing it is not allowed. The Palacio displays more typical Puuc architecture, with ornate friezes atop unadorned lower facades.
Around the northern edge of the Palacio, a path leads through the trees to the mildly interesting Temple of the Columns. The name says it all, as the facade is covered in attached decorative columns. Two choltunes used to collect and store water flank the path just as you reach the temple—be careful not to tumble in!
Links:
[1] http://www.moon.com/destinations/cancun-the-yucatan/the-state-yucatan/the-puuc-route/kabah-archaeological-zone/codz-poop