Explore 1000 years of history in this fun and informative two-hour guided walk. See the brewery that became a town hall, and a church that became a shopping centre. Marvel at some truly beautiful old houses and almshouses. Hear about a fair that was so famous that Cossacks flocked to it, and so infamous that the Victorians tried to close it down. Hear about the famous Battle of Barnet. With Paul Baker, City of London guide. £12, under 12s £5