There are 66 million girls in the world who do not have access to education.
U.S. Cellular Field can hold 40,615 people. 66 million people would fill it 1,625 times.
Naperville, one of the largest cities in Illinois, has a population of 142,773. 66 million people would be about 462 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 10,282 years for this school to graduate 66 million students.
Willis Tower is one of the tallest buildings in Illinois (110 floors). A stack of 66 million pennies would be as tall as 231 Willis Towers.
66 million people holding hands would stretch around the world more than 2.5 times.
Comparing to data near Naperville, Illinois. (click to change)