In the Morpeth Arms pub in London, there's a Spying Room with a view overlooking the headquarters of MI6.
 It now contains a Spying Room which provides a good view of the headquarters of the Secret Intelligence Service across the river. 
The SIS Building or MI6 Building at Vauxhall Cross houses the headquarters of the Secret Intelligence Service (SIS, MI6), the United Kingdom's foreign intelligence agency. 
