Question: Near which airport does the station whose north is the historic Hialeah Seaboard Air Line Railway station, and the only place in the county, other than Homestead, Florida, to have its own street grid numbered separately from the rest of the county?
Sentence (from "Hialeah, Florida"): It is a principal city of the Miami metropolitan area, which was home to an estimated 6,012,331 people at the 2015 census.
Relevant evidence: No