It has 3 levels, each being the size of a football field.
It was about half the size of a football field.
It is a wide open area about the size of a football field.
This is more or less the size and shape of a football field.
In Houston he said there is one the size of a football field.
The space was vast, the size of a football field.
The waves break in an area less than the size of a football field.
The group dug out an area the size of a football field and 45 feet deep.
The average field size is only 0.35 ha, ranging from 600 to 6000 m2.
One pod could cover an area the size of a football field.
