Office of the Prime Minister and Privy Council - Credit: Wikimedia Commons
The Office of the Prime Minister and Privy Council () building, formerly known as the Langevin Block (, ), is an office building facing Parliament Hill in Ottawa, Ontario, Canada. As the home of the Privy Council Office and Office of the Prime Minister, it is the working headquarters of the executive branch of the Canadian government. Read more on Wikipedia
Source: en.wikipedia.org