Charlie gives an exclusive 'Olympic 2012' tour of 10 Downing Street
No. 10 Downing Street
Hilarious moment Downing Street policeman knocks on Number 10 to let Larry cat in
London's Fake Downing Street
Larry the Cat to Remain at 10 Downing Street
10 Downing Street, colloquially known in the United Kingdom as Number 10, is the headquarters of the Government of the United Kingdom and the official residence and office of the First Lord of the Treasury, a post which, for much of the 18th and 19th centuries and invariably since 1905, has been held by the Prime Minister.