Niagara Falls could flow at its normal rate for two hours.
An Olympic-size swimming pool could be filled 213,000 times.One of the towers of New York's World Trade Center could be filled 80 times - from the first floor to the 110th.
Flow with what? Filled with what?
The volume of Coca-Cola soft drinks consumed around the world in 1988.
According to the company, it sold more than 200 billion servings of soft drinks in 160 countries during 1988, a record volume worldwide.
If those servings were in 12-ounce cans, placed end-to-end, they would circle the earth 429 times, make 23 round-trips to the moon, be 5,000 times longer than the Great Wall of China.