Witness History Folgen

This week more than seventy thousand people are gathering in the middle of the desert in Nevada for Burning Man - part festival, part counter-culture phenomenon. This year it's the event's thirtieth anniversary - and we've been speaking to founder and Chief Philosophical Officer Larry Harvey about how they first got started.Picture: Dancers at the 1998 'Burning Man' festival create patterns with fireworks in the Black Rock Desert of Nevada just prior to burning a five-story, neon-lit effigy of a man on the last night of the week-long festival (MIKE NELSON/AFP/Getty Images)

In August 1973, a Latin music supergroup called Fania All Stars played a historic concert at New York's Yankee Stadium. It helped spread the sound of salsa music from New York to the world. Simon Watts talks to Larry Harlow, pianist and producer with the All Stars, and Puerto Rican salsa DJ, Ray Collazo.PHOTO: Fania All Stars singer Hector Lavoe (Getty Images)

In August 2008 a massive military convoy set off across the desert in Helmand carrying a gigantic turbine for a hydro electric power station. Eight years later that turbine is finally being installed - and should help bring electricity to Southern Afghanistan. Monica Whitlock has been speaking to Joe Fossey, then a Major in the British Royal Engineers, who helped get the convoy through.Photo: Major Joe Fossey in Helmand Province. Courtesy of Major Fossey.