Cityscape Of Nagasaki

I came to a vantage point. I could take a survey of this city from there. A compact cluster of houses was seen on the slope.

It is said that the rich people live in a higher place than the ordinary people. Yet I couldn't understand whether the role fitted naturally into this city. The similar houses stood on both the higher place and the lower place. The only thing I could know was many people lived in Nagasaki city.