Not really. People at this time lived with a much lower population density. Our modern cities that can house millions of people within a few square miles are on

Not really. People at this time lived with a much lower population density. Our modern cities that can house millions of people within a few square miles are only possible because of advanced infrastructure for transporting water, food, and waste, and only desirable because of our industrial society where all these people can work in close proximity. In ancient times, people were much more limited by the distribution of resources, so rather than one big city, they'd have lots of smaller settlements. Note that most ancient "cities" would be small towns by modern standards - Jerusalem for example had a population of around 5000 inhabitants around 1000 BCE. Pretty much every place where there could be such a settlement, there would be. Thus in that period, if you picked a random spot on earth, the odds that there would be a (by the standards of the day) dense population center in close proximity would be much higher than today.