It would take 8,000,000 people to fill a football stadium. If you stood them all close together, they would cover 1.01 mi (1,621 m) by 3,799 ft (1,158 m), which is about the area of a square kilometer.
Nobody has photographed 8,000,000 people yet.
To fill a football stadium
about 8,000,000 people
covers about the area of a square kilometer
Sizes and weights are typical for an adult or standard person; real ones vary. Standing close together, not packed in.