Vyacheslav Stoyanov had dreamed of visiting America since he was a young child. Yana Melamed grew up visiting family in the United States. But she long dreamed of exploring South America. Together, they are making both of their dreams come true. On bicycles. Yana is from Bulgaria. Vyacheslav, who goes by Slav, is originally from Ukraine. He moved to Bulgaria almost 20 years ago. Last June, Slav and Yana flew on an airplane with their bicycles -- from Sofia, Bulgaria, to Deadhorse, Alaska. The town of 25 people is one of the northernmost communities in North America. From Deadhorse, they began a 60,000-kilometer bike trip, from Alaska to Argentina. They are biking to the southernmost point in South America.