Teotihuacan

One of the best ancient cities in Mexico is Teotihuacan, a holy Mesoamerican city that was constructed approximately 400 BC. Teotihuacan, a UNESCO World Heritage Site that has miraculously survived a fire that ravaged the city in the 7th century, is still a very popular tourist destination for both local and foreign visitors.

When Teotihuacan was at its peak, around the year 400 AD, it covered 30 square kilometers and had a population of about 150,000, ranking it as the sixth-largest city in the world at the time. The city's comparatively quick demise is still a mystery to historians and archaeologists; some think it was destroyed by competing city-states in the area, while others attribute it to severe droughts and climate change during the period.

The buildings along the Calzada de Los Muertos (Avenue of the Dead) are gray today, but they used to be covered in vibrant ceremonial murals. The road, which is almost 40 meters wide and occupies the majority of the 4 kilometer property, continues to serve as the complex's central axis.

Location: Mexico state, Mexico