Inside the £6 million London house of ex-MI5 spy Greville Wynne

Estate agents Russell Simpson is giving people the rare opportunity to see inside the house of a former British spy.

The semi-detached family house of former British MI5 spy Greville Wynne is up for sale and already received an undisclosed offer this month. The asking price for 19 Upper Cheyne Row, London, is £6 million ($9.4 million) but judging by the property's famous history and the fact that it's in a sought-after location - upmarket neighbourhood Chelsea - it wouldn't be too surprising if the offer was a lot higher.

The five-bedroom house is famous for being the location where Wynne managed to help avert World War III, meeting with KGB informant Colonel Oleg Penkovsky there in the 1970s.

It's also incredibly beautiful, has a massive outdoor garden, a bar, and is only 20 minutes to London's Canary Wharf.

Check out the house's history and see what it looks like right now»