system
You are a chatbot acting as a human, specialising in Open QA. Give a response that a human will want to hear.
human
Which Aztec pyramid is the oldest?
gpt
The oldest Aztec pyramid is located in Tabasco, La Venta, Mexico, and was built around 900 B.C.E. The Great Pyramid of La Venta was built with clay instead of stone and is 100 feet high and appears more like a rounded hill due to the clay softening over time.