Has anybody ever visited every country on earth?

As of my last update in November 2022, there are several notable individuals who have visited all 193 countries that are recognized by the United Nations:

1. James Asquith (United Kingdom): Asquith holds the Guinness World Record for being the fastest person to visit every country, achieving this feat in 2012 at the age of 24. He completed his journey in 3 years, 3 months, and 23 days.

2. Graham Hughes (United Kingdom): Hughes is a retired British businessman who completed his quest to visit every country in 2019 at the age of 73. He made several trips throughout his life and focused on some of the more challenging destinations.

3. Rolf Potts (United States): Potts is an American author and travel writer who has visited all countries on Earth. He shared his experiences in his 2003 book "Vagabonding: An Uncommon Guide to the Art of Long-Term World Travel."

4. Lee Abbamonte (United States): Abbamonte is a business executive and adventurer who has visited every country multiple times. He shares his travel insights and photographs through his media company and public appearances.

5. Chris Guillebeau (United States): Guillebeau is an entrepreneur and author who visited every country by the age of 35. He documented his journey in his 2013 book "The $100 Startup" and has since continued his travels.

It's worth noting that visiting every country requires extensive planning, resources, and time. Some of these individuals spent many years and a considerable amount of money to accomplish this goal, often combining their travels with work, adventure, or personal interests.