imo the most bizarre thing about the Aztecs was the sheer magnitude of human sacrifice. In order for human sacrifice to be such a big tradition during times of peace implies a completely different sense of self and life as a whole. When the missionaries came and tried to put a stop to the sacrifices, the victims actually fought to be sacrificed. It's just bizarre (and unsettling) how culture can push people to do things to their own detriment
Source (alternative frontend w/ no ads): https://yewtu.be/watch?v=or6W4sXpl3c