You can’t define modern civilization without mentioning its cities. These urban settlements vary in culture, size and specialty, with certain areas becoming more significant throughout the development of a region. Historically, the size or population of a settlement was a general indicator of its importance—the bigger city, the more power it yields—however, with the large rural-to-urban migration of the last century, it has become harder to define what makes a city important. There are many types of urban landscapes, and for architects and planners it is vital to efficiently categorize settlement types in order to successfully develop designs and city plans. The following list provides four key definitions that have emerged in the last century.
.jpg?1529231453 "© <a href='https://commons.wikimedia.org/wiki/File:Lujiazui,_Pudong,_Shanghai,_China_-_panoramio_(11).jpg'>Haluk Comertel</a> licensed under <a href='https://creativecommons.org/licenses/by/3.0/deed.en'>CC BY 3.0</a>")
