'Open House Weekend' is a London-wide event that allows the public inside some of London's best buildings for free.
The Benjamin Franklin House will be taking part this year, and offering everyone a 30-minute tour of the Georgian townhouse for free.
Craig has attended one of these tours himself (but one of the paid ones, not during Open House Weekend), and written a review on his blog. You might like to read it before you go, just to get a taste of what it's like inside.
In case you don't know who Benjamin Franklin is (you really need to pay more attention at school!), he originally acted as a middle-man between the British government and the colonies, and later helped to draft the Declaration of Independence and the Constitution of the United States after the War of Independence.
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