Catherine the Great filmed at Yusupov Palace, Saint Petersburg. The private theatre seen in episode two was filmed inside this 18th-century palace in Saint Petersburg.
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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