Where was Mr. Hercules Against Karate filmed?

1973 film by Antonio Margheriti

Mr. Hercules Against Karate (1973) was filmed in Singapore, Hong Kong, Sydney and Bangkok, 4 places named in its Wikipedia article, in Australia, Singapore, Hong Kong, Thailand. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

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