Beyond the familiar axis of Oxford and Regent Streets, London plays host to a huge variety of shops, one-of-a kind boutiques and street markets.

BBC: Mini guide to shopping in London

For a Berkeley-born favourite, make the trip to the historic Ferry Plaza Farmers Market on the edge of San Francisco Bay, where artisanal food vendors, organic farm stands, legendary coffee shops and a host of restaurants buzz with chatter, tasting, slurping, clanging and eating.

BBC: Flour power in San Francisco��s sourdough