It’s been almost a year since I visited Norwich, a beautiful medieval city located 100 miles (161 km) north-east of London. With a population of 143,000, Norwich is a relatively small city; yet, it used to be England’s second-largest city after London up until the 18th century it was. Norwich is the most complete medieval city in the country. Elm Hill, a historic cobbled lane located in the city centre is lined with buildings dating back to the Tudor period. Not far from there, there’s the imposing 11th-century Norwich Cathedral. The River Wensum flows through the city centre, towards the  castle; founded soon after the Norman Conquest (in 1066), the castle is now a museum.…