Free entry to Sussex historical sites including Lewes Castle (find out how)

History buffs can take a look behind closed doors at dozens of sites across the region this month - free of charge. The Heritage Open Days festival returns to Sussex for just over one week this month with guided tours and open events. This year's festival theme is Routes – Networks - Connections and venues on the bill include broadcast studios and railway stations. Beer enthusiasts can also take a tour of Harvey's Brewery (Image: Wikimedia Commons) In Brighton, people …