We visit Wakefield’s rhubarb triangle, Britannia’s westernmost amphitheatre in Carmarthen, and Colne - home of Monty Python’s favourite cobblestones
• Where tourists seldom tread, parts 1-12

Actors say “rhubarb” to appear to be chatting. It’s easy to say the word quietly. Here in the national capital of this tasty perennial the stalks are – right now – growing, blushing, sweetening silently in the dark. The harvest season starts in mid-February, when shed doors are prised open and the gathering-in commences, by candlelight.