Before we got married, my wife and I visited Teotihuacan near Mexico City. We climbed the massive Pyramid of the Moon and had our picture taken with the even larger Pyramid of the Sun behind us. The enormous complex was built over hundreds of years by a civilization that preceded the Aztecs. Archaeological and historical evidence tell us the place where we stood was previously used for animal and human sacrifices. It's now a tourist destination.
This is a companion discussion topic for the original entry at https://jlericson.com/2023/11/04/platform_building_so.html