National Treasure: Book Of Secrets filmed at Lancaster House, London. The opulent interior of this government-owned building stands in for a royal palace. On screen it's Buckingham Palace.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Planning the trip? The United Kingdom travel atlas covers money, language and getting aroundand everything filmed in London is on one page
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in London and it tells you what was shot around you, how to get there, and whether you can actually go in.
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