Graham David Hughes is a British adventurer, filmmaker, television presenter and Guinness World Record holder. Hughes was the first person to visit all 193 United Nations member states and several ...view moreGraham David Hughes is a British adventurer, filmmaker, television presenter and Guinness World Record holder. Hughes was the first person to visit all 193 United Nations member states and several other territories across the world without flying. He did so over a period of nearly four years and completed the task in November 2012. While on his journey he presented the television program Graham's World on the National Geographic Adventure channel, a weekly look into his ongoing quest to break multiple world records by visiting every country on earth without flying.view less