Lancaster House

Lancaster House has starred as Buckingham Palace so often it’s in danger of being typecast. See it now in The King’s Speech with Colin Firth and Helena Bonham Carter, while it had the same role in The Young Victoria and National Treasure: Book of Secrets (2007) where it doubled as a ballroom, passageway and reception.

But it’s not just recent films using the location: in Warren Beatty’s Reds (1981) it was used to depict St Petersburg’s Winter Palace. Built in 1825, the Grade I-listed building is a Government conference centre managed by the FCO.