Pearl Harbor filmed at US Steel Gary Works, Gary. Tokyo's industrial district is this steel works, with Lake Michigan standing in for the Pacific. On screen it's Tokyo industrial district.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Planning the trip? The United States travel atlas covers money, language and getting aroundand everything filmed in Gary is on one page
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Gary and it tells you what was shot around you, how to get there, and whether you can actually go in.
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