London 2012 events: this week's best things to do in London, from Greenwich comedy to Traction Festival When: July 13-20 Where: Old Royal Naval College, Greenwich, London SE10 9 Getting there: DLR to Cutty Sark How much: ticket prices vary, entry to the festival grounds is free Traction Festival, Granary Square Another new event forming part of the London 2012 Festival, the Eurostar Traction festival is curated by French DJ Gilles Peterson and features artists who come from destinations served by Eurostar. Among those appearing are Sébastien Tellier, The Brandt Brauer Frick Ensemble and Ghostpoet. The event itself takes place in Granary Square near St Pancras International, which is a newly developed open space that forms part of the 67-acre King's Cross redevelopment. When: July 14 Where: Granary Square, off Goods Way, King's Cross, London N1C 4AA Tube: King's Cross St Pancras How much: tickets are £20 and available to over-18s only Vietnam Summer Festival, Spitalfields Market and St Martin's Courtyard Global Food Festival, Covent Garden It says a lot about how multicultural London is when you recognise the capital doesn't just have a massive Chinatown - in major cities that's pretty much a given these days - but that it also has its own Vietnamese district, for restaurants at least. Anyone who visits Kingsland Road in Hackney will find Vietnamese restaurants spread all over, and this week the cuisine and culture of Vietnam is celebrated with the Vietnam Summer Festival in Spitalfields Market. On Saturday over 100 stalls there will showcase the country's food, arts, crafts and culture, with stage performances and dance recitals taking place throughout the day. If it inspires you to visit look out for the chance to win an Experience Travel-sponsored 12-day holiday to Vietnam for two while you're there. On the same day, the restaurants of St Martin's Courtyard come together to host the St Martin's Courtyard Global Food Festival. Thai, Italian, Mexican, Indian and other international cuisines are all represented during a five-hour programme that will feature live entertainment, wine tasting and food sampling. Local restaurant Cantina Laredo is particularly likely to make its presence felt, as it will be distributing 2,000 free cocktails on the day. When: July 14 Where: Spitalfields Market, 65 Brushfield Street, E1 6AA for Vietnam Summer Festival; St Martin's Courtyard, 9 Slingsby Place, London WC2E 9AA for the St Martin's Courtyard Global Food Festival. Tube: Liverpool Street for Vietnam Summer Festival; Covent Garden for the food festival How much: both are free to visit When: July 7-19 Where: Somerset House, Strand, London WC2R 1LA Tube: Temple; Covent Garden How much: £22.50-£35, excluding booking fee