Monte Alban was the cerimonial centre of the Zapotec civilization. It was later used by the Mixotecs and features a burial site discovered intact by Alfonso Caso, the items of which can be viewed at the Oaxaca Cultural Museum.
Read more on the (Wiki link) and view the site maps here and here or another here.
Tomb number 7

Entering the Northern Platform
Grand Plaza from the Northern Platform

Photo time

Climbing out of the sunken courtyard

Stella 9

System 4 Building K

Gallery of the dancers

Grand Plaza with the Observatory from the Southern Platform

System M and on to the Dancers

on Southern Platform

The Palace was the only habbited location on the site

The Ball Court
Mexican archaeologist Alfonso Caso who discovered Tomb No.7
From the Site Museum