27 year old woman traveler in the United States, Gassid Kerr Sie De Pecol took just 18 months, 26 days and traveled to 196 countries around the world, creating the shortest Guinness world record in the world. 
it is reported that Casey, who lives in Washington, Connecticut, set out in July 2015. By the end of 2016, she had reached 180 countries, took 254 flights, and ended in February this year, and she and her "196 country plan" set a new Guinness world record.