Visiting the Maya ruins of Palenque in the south of Mexico is one of the highlights of every visit to the country. When you make the daytrip from San Cristobal de las Casas, the impressive Agua Azul waterfalls are a huge bonus. Picture time! (there is also a report on this daytrip)
Palenque and Agua Azul in pictures
The Palace central complex in Palenque