From Hell filmed at Salm Palace, Prague. A classical palace opposite the castle gates, used as the Special Branch headquarters. On screen it's Special Branch HQ.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Planning the trip? The Czech Republic travel atlas covers money, language and getting aroundand everything filmed in Prague is on one page
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Prague and it tells you what was shot around you, how to get there, and whether you can actually go in.
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