Where was Chicago Typewriter filmed?

2017 South Korean TV series

Chicago Typewriter (2017–) was filmed in Seoul Capital Area, 1 place named in its Wikipedia article's Production section, in South Korea. 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.

See them on the map → Wikipedia Source data

Places per Wikipedia's Production section

Wikipedia’s Production section names 1 place. Each links to the sentence that says so.