The Royal Coat of Arms, also know as the Arms of the Dominion, adorn the front gate of Buckingham Palace.
The Royal Coat of Arms of the United Kingdom is the official coat of arms of the British monarch. The Queen uses it in her official capacity as monarch. The Royal Arms vary slightly with other memebers of the Royal Family and British government.
These Royal Coat of Arms are on the front gate of Buckingham Palace and are quite large.