Chicago, Houston, and Philadelphia.Chicago has one of the world’s most beautiful lakefronts.Chicago is a major center of higher education, with numerous colleges and universities.Michigan, occupying flatland traversed by two short rivers: the Chicago.The United States of America is a very diverse country.It is a multicultural and multiracial country.The country’s most important city is its capital - Washington, D.C.Washington, D.C. strikes the visitor as a lovely and formal city.Washington wasn’t always this way.River and the Calumet River.