How many football fields does it take to go across the earth?

The Earth is approxiamately 24902 miles long (across the Equator) and 24859.73 miles around the North and South poles. Football stadiums are approximately 0.6 miles long, so

24902 / 0.6 = 41503.33333 (repeating)

There would be about 41503.3 football fields to get across the Equator.