How One Man Realized His Dream of Visiting Every Country

Friday, April 3, 2015 - 07:00 in Mathematics & Economics

Lessons learned from traveling to 196 countries include what old camel meat tastes like and why toilet paper is the best economic indicator.

Read the whole article on National Geographic

More from National Geographic

Learn more about

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net