Building Groups M and O in foreground on left, with Building L in background on right, Monte Alban, UNESCO World Heritage Site, Oaxaca, Mexico, North America

photography colour colour image color color image vertical vertical image outdoors outside day nobody no one no one travel destination travel destinations travel group m group o building l monte alban unesco unesco world heritage site world heritage site oaxaca mexico architecture architectural building exterior building buildings landmark landmarks famous well known well known old ruin ruins ruined old ruins remains pre columbian ancient history historical historic heritage tourist destination tourist destinations wall arts culture and entertainment culture cultural high angle view high angle