Although it's not in on the Riviera Maya, Palenque is truly one of the wonders of the world. Immersed in dense jungle high up in the hills this is a different type of ruin adventure. Climb the masses of steps to get the best views ~ Mexico.
*Palenque* - Palenque was a Maya city state in southern Mexico that flourished in the century. The ruins date back to 226 BC to its fall around 1123 AD. It is located near the Usumacinta River in the Mexican state of Chiapas
Cascadas de Agua Azul and Palenque Ruins: A Day Tour in Palenque, Mexico