Bali, Indonesia: Veley grew up in Brooklyn and didn’t leave the United States until he was 18. 'Money was tight and we never had holidays so I used to fantasise about life on the road,' he said Photograph: Charles VeleyPhotograph: guardian.co.ukBurj-Al-Arab, Dubai: He was sponsored through his computer science degree at Harvard by the Officer Training Corps of the US Air Force, but after topping his year as a trainnee fighter pilot, he was abruptly dropped when a medical discovered a scar on his retina. Instead, he took a flight to the UK and caught the travelling bug Photograph: Charles VeleyMogadishu, Somalia: Trials during his epic journeys have ranged from his canoe capsizing among hippos in the Zambezi to a tree frog urinating on his forehead in Tortuguero. He rates Virgin and Singapore Airlines as the best airlines, Somalia’s Daallo was his least favourite Photograph: Charles VeleyRio de Janiero, Brazil: Back in the US, Veley set up a software company called MicroStrategy, which later floated on the Nasdaq. Its share price peaked at $333 – and he had 500,000 shares Photograph: Charles VeleyPeter I Island near Antarctica: Veley used his new-found wealth to fund his extensive travelling, setting out in 2000 for a year-long round-the-world trip with his wife Kimberley Photograph: Charles VeleyPhotograph: guardian.co.ukMachu Pichu, Peru: MicroStrategy’s share price went up and down, Veley kept travelling, on average managing to visit about 100 new countries per year, until his first child was born in 2004Photograph: Charles VeleyThe South Pole: Clocking up new territories is easier in some parts of the world than others. In 2003 Veley visited the South Pole, and was able to put a foot into the territories of six countries (which all intersect there) without moving Photograph: Charles VeleyTaj Mahal, Agra, India: Veley says his obsession is 'an investment in life experience'. 'Whenever I meet anyone, no matter where they are from, I can always relate to them.' Photograph: Charles VeleyPhotograph: guardian.co.ukKathmandu, Nepal: Now the father of three children, he says family rather than travel is his priority, but he still maintains a hectic schedule, commuting between the world’s far flung outposts and his home in San FranciscoPhotograph: Charles VeleyMunich, Germany: Though only 65 'countries' remain to visit, Veley says he doubts whether he – or anyone else – will ever complete the full list. Border disputes and arguments over what constitutes a country mean the list is not fixed for long. 'We are always adding new places,' he says Photograph: Charles VeleyPhotograph: guardian.co.uk