The Omen filmed at Lednice Castle, Lednice. A Neo-Gothic castle in South Moravia plays the ambassador's enormous new residence in the film. On screen it's Ambassador Thorn's English home.
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 around
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Lednice and it tells you what was shot around you, how to get there, and whether you can actually go in.
Download Venture for iOS Android