- "Buckingham Palace. Right. I am seriously fighting an impulse to steal an ashtray."
- ―John Watson [src]
Buckingham Palace is the official residence of the British monarchy located in the United Kingdom. It is often used to entertain royal guests and host state occasions. It is irreverently and colloquially referred to as 'Buck House'.
Sherlock Holmes and Dr John Watson are called to the palace after an anonymous client asks them to investigate Irene Adler. Mycroft organises for Sherlock to be brought to the palace due to the sensitive nature of the client, who is also apparently a fan of John's blog.