Catherine the Great filmed at Catherine Palace, Saint Petersburg. A gallery room above a private bathroom is where a character gets bad news and collapses to the floor.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Planning the trip? everything filmed in Saint Petersburg is on one page
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Saint Petersburg and it tells you what was shot around you, how to get there, and whether you can actually go in.
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