What If Africa Was Just ONE Country? The Most Complex International Borders in the World. Why the Northernmost Town in America Exists. How Will Earth Change If All the Ice Melts? What's The Tallest Mountain In The World!? - Myths Debunked. What If We Made A New Continent? What If Earth Started Spinning Twice as Fast Right Now? What Every Country in the World is Best At (Part 2). What if the Roman Empire Reunited Today? The history of chocolate - Deanna Pucciarelli.