10 Downing Street in London, England, is the headquarters of the Government of the United Kingdom and the official residence of the Prime Minister. (It is actually officially designated as the residence of the First Lord of the Treasury, an office which has effectively been merged with that of Prime Minister since the beginning of Britain's modern parliamentary system, circa 1714.)

10 Downing Street in The Two GeorgesEdit

America's Number 10 in Victoria, the official residence of the Governor-General of the North American Union, was named after 10 Downing Street, the British Prime Minister's residence in London.

10 Downing Street in The War That Came EarlyEdit

Alistair Walsh and a British Army major were scouting Downing Street in order to plan an effective attack on 10 Downing Street on the day that Walsh was arrested. Walsh had reflected that the major was a good deal more conspicuous than would have been ideal for the assignment. However, it was Walsh who was arrested.