The Guardian lists the best 50 foods to eat and where to get them. I've had a few of these (ravioli at Babbo, pork at Gramercy, pho at Pho 24, pastrami at Katz's, etc.) but, sucker that I am for such things, I particularly enjoyed reading about the Turkish olive oil available at an electrical supply shop in London:
At his electrical supply shop in London's Clerkenwell, Mehmet Murat sells wonderful, intensely fruity oil from his family's olive groves in Cyprus and south-west Turkey. Now he imports more than a 1,000 litres per year. His lemon-flavoured oil is good enough to drink on its own.