Changes shape life, sometimes they improve it, sometimes they simply make it more intense. People definitely need a good deal of courage to change, especially when an innovation permanently changes their life. But nowadays there are many opportunities to be seized in every field, and this, perhaps, makes changes inevitable. For example, people can choose from a vast panorama of places where they would like to live and relocate their lives. In Penelope Trunk's experience, “Three years ago, I decided to move from New York City to Madison, WI based solely on research. I bring together research on economic development with research on positive psychology. Then I looked up city statistics on the Internet and moved. I had never been to Madison in my life, and you know what? It was a good decision.”(Trunk) However, people refuse to live a country life surrounded by crops to grow crops, so more than half prefer to explore nature only for holidays. This phenomenon is demonstrated by statistics from The Guardian, in which a worldwide analysis shows the percentage of the urban population in 2010. The study, for example, verified that in the USA 82.3% of the population lives in cities. (Brown) As a result, the key issues today are about cities and how they affect people. How do people live in modern cities? How do they live in traditional ones? Modern metropolises and traditional cities are very different from each other. Above all, dividing cities into these two categories can highlight different points of view. According to Robert Adam, in an article published by City Journal, he states: “There is so much about the modern city that is wrong… In traditional cities like Siena in Italy or Bath in England we can… of paper ......2 April 2012.9. Modafferi, Antonio “Living in Siena” quicalabria.it Ammega, Business Solutions June. 2007. Network. 4 April 2012.10. Silverman, Sydel. “On the uses of history in anthropology: the 'palio' of Siena.” American Ethnologist 6.3 (1979): 413-436. Print.11. Sinatra, Frank. “New York, New York”. Trilogy: Past Present Future. Frank Sinatra, 1979. CD.12. REM “Leaving New York”. Around the sun. Warner Bros., 2004. CD.13. Rosenberg, Jennifer “The Empire State Building” history1900s.about.com The New York Times Company nd Web. 10 April 2012.14. Suh, Annie “What Makes New York Unique” annie-suh.suite101.com NE US Travel October 2008. Web. “April 20, 2012.15. Trunk, Penelope “How to Decide Where to Live” blog.penelopetrunk.com Penelope Trunk May 2009. Web. April 26, 2012.16. UNESCO "Historic Center of Siena". UNESCO World Heritage Centre. nd.