Because they were all about homes and Cities
As many as 50 million people had been killed in World War II, and thus after it ended, the Allies faced difficult decisions about the future.
The United nations was formed as a peacekeeping and humanitarian group, and the U.S. Marshall Plan offered the aid in rebuilding. This however, is what led to the Cold War. The Soviet Union and the West were quick to develop into competing alliances.
Capitalist/rightist/individualist