Why is St. Paul’s Cathedral such an iconic symbol of London? And why doesn’t it face due east? And what does St. Paul have to do with the City of London crest? What is the City of London and why can’t the Queen come in? Why do so many London neighborhoods end in –gate? Why is Temple Church round? And what did those secretive Knights Templar do here? And what does all of this have to do with Magna Carta — and why has a copy remained at Salisbury Church for 800 years?