When we talk about cities with a grid plan, all the cited examples in sibling comments pale in comparison to Mohenjo-daro. It existed around 2500 BC and one of

When we talk about cities with a grid plan, all the cited examples in sibling comments pale in comparison to Mohenjo-daro. It existed around 2500 BC and one of the iconic places is the Great Bath which is the "earliest public water tank of the ancient world". Tenochtitlan existed in the 15th century which is fairly recent.