Information on the location
The MI6 Headquarters is the main base of the Secret Intelligence Service, commonly known as MI6 (Military Intelligence, Section 6). Among those working for the agency are M, the head of MI6 and Bond's superior, Q, head of the research and development division and supplier of gadgets for Bond on his missions, and Miss Moneypenny, M's secretary and a friend of Bond's.
Appearance in the rap battle
This is the location where James Bond rapped during his first verse. He could be seen firing his submachine gun from Casino Royale and Quantum of Solace while in the control center.