Great travel story:
In eight years, Okhwan Yoon has visited 169 countries on his bicycle.
The South Korean gave up his clothing trading company after saving up money to embark on his journey to promote world peace.
He is now touring the world on his fifth bike and travels about 200 miles a day, Yoon said.
"I have contracted malaria about four times while I was in Africa," Yoon said. "I have also been hit by cars and needed several operations."
Even though he has been robbed and attacked at knife-point, he said he still believes there can be world peace.
Another good bicycle story is Heinz Stücke - riding the same bike for 45 years through 192 countries.