India, Nov. 1 -- For nearly three decades, British adventurer Karl Bushby has been walking towards one destination, his mother's home in Hull, England. What began as an ambitious expedition in 1998 has turned into a 28-year journey spanning 31,000 miles across four continents, involving dangerous crossings, harsh terrain and unexpected obstacles.

Now 57, Bushby is finally approaching the end of his extraordinary trek. But after spending most of his adult life on the road, returning home is bringing its own uncertainties, according to the Associated Press.

Bushby was not yet 30 when he began his journey from the southern tip of South America on November 1, 1998. His original plan was to complete the expedition in 12 years. Instead, the j...