London calling! Tour of Whitehall, MI6 tour?

[managedmis]

Does anyone know if a tour like this exists?

Going in the buildings? I doubt it. I knew someone who used to work at the ministry of defence and she showed me around the museum in the building. I think you need someone who works there to get you a visitors pass though.

Walking tours I don't know.

There is a Whitehall one done by London Walks - it’s called London by Gaslight (I think) and is excellent. You do it at dusk. The guide we had was superb. Doesn’t include MI6 though

Ooh, thanks sunny, sounds ideal