Man walks 18,000 km across 21 countries for three years

Meigo Mark, an Estonian national, has been walking nearly 18,000 kilometres across 21 countries for three years. The 27-year-old began his journey in 2014 from the Estonian capital of Tallinn and is currently in Singapore. Calling his journey "a great learning experience", Mark said he wishes to walk minimum the distance of the equator (40,075 km) within 9-10 years.