By Reiko Kuwabara
Japan has a seemingly endless supply of regional specialities, a great many of them edible and delicious, but most of us don't have enough time or money to zip around the country in order to sample all of these goodies at the source. That's where 'antenna shops' come in handy: practically all of the 46 prefectures, plus quite a few cities and smaller municipalities, have their own dedicated retail outlets in Tokyo. Look through our top picks below and set out on a one-day trip from Hokkaido down to Okinawa – without ever leaving the city centre.