In Union City (N.J.)
, the answer is on a roof.
The school's multi-purpose field, which also plays host to the school's football squad, gives the baseball team a home four stories above the city of 67,000 residents.
The field is just west of the Hudson River, in a highly residential area of the city.
Foul balls flying over the side of the building are not uncommon. The balls have only damaged cars and have not injured anyone.
The school's insurance pays for any damage from the foul balls.
Check out some in-game action at the field in the video below.
Where do you find space for a baseball field in one of the most densely populated cities in the nation's most densely-populated state?