The discovery of the ruins of an 800-year-old pyramid in the heart of the Mexican capital could indicate the city is older than it was earlier thought. Archeologists have discovered the ruins of an ...
In this July 27, 2016 photo,tourists sit at the midway point of the Pyramid of The Moon viewing the ancient Pyramid of the Sun, back right, at the ruins of Teotihuacan in Teotihuacan, Mexico. Ross D.