Monte Alban Pre-Columbian archeological site, Oaxaca
This site is an ancient centre of Zapotec and Mixtec culture. It was one of the most important cities in Mesoamerica for over 1000 years until its demise in the 8th century. It was also about the only cultural thing that we attempted in Oaxaca!
Disclaimer: I didn't want to carry a camera with me all day, so this photo is plucked off the internet!