There were 1.5 million people killed in the Armenian Genocide.
U.S. Cellular Field can hold 40,615 people. 1.5 million people would fill it 36 times.
Naperville, one of the largest cities in Illinois, has a population of 142,773. 1.5 million people would be about 11 Napervilles.
University of Illinois at Urbana-Champaign is one of the largest colleges in Illinois and graduates an average of 6,419 students per year. It would take 234 years for this school to graduate 1.5 million students.
Willis Tower is one of the tallest buildings in Illinois (110 floors). A stack of 1.5 million pennies would be as tall as 5 Willis Towers.
Comparing to data near Naperville, Illinois. (click to change)