How does anything magnificently monumental happen?  More recently, wars inspired the USA to change the world with two incredible accomplishments:  The Manhattan Project and the Apollo Project.  The former was to beat Hitler build an atomic bomb, leading to victory in World War II, and latter to bankrupt the Soviet Union to end the Cold War. The first one listed above, the  Transcontinental Railroad , was built by three private companies over public lands provided by government grants and financed by state and federal subsidy bonds.  The leader of the organization was Leland Stanford, who went on to found Stanford University.  Hoover Dam was financed by a $140 million mortgage loan from the U.S. Treasury, and was  finally paid off in 1987 .  President Herbert Hoover pushed the bill in Congress during the great depression.  He was in the Pioneer Class of 1891 at Stanford, and that tower is named for him.   However, he makes all the lists for worst presidents of U.S.   Here  he is #9 and