I saw a program last night about ancient inventions of the city. It mentioned that some Roman insulae (apartment buildings) were at least 8 stories high. I thought they were only about 4 stories high so I find that very amazing. I also was surprised to learn that Minoans, not the Romans, invented aqueducts. I find it strange that aqueducts are not mentioned in discussions of ancient Greece since the Myceneans eventually absorbed the Minoan culture. I will need to research this further. The narrator also mentioned that Augustus formed the first state-operated fire departments. However, some of the fire departments apparently got into the "protection" racket and started fires then extorted money from the property owner to extinguish the blaze.