A tower of human skulls has been found in Mexico City, going back to the Aztec era. See www.nbcnews.com/news/world/tower-human-skulls-mexico-casts-new-light-azt… … where archaeologists have unearthed 675 skull of men, women, and children at Huey Tzompantli. The Spanish conquistadores recorded thousands of skulls they came across – so the archaeologists have some way to go before reaching the bottom of the tower. The structure lies close to the Templo Major, which was used for human sacrifices in the capital, Tenochtitlan.
