Here at Traveler, we tend to think that we travel a lot. Like, a lot a lot. But then we meet people who go for the extreme (say, hitting every country in the world, or solo-sailing the Pacific Ocean) and put us to absolute shame. Take Kate Harris, who hopped on a bike with her childhood best friend Mel and pedaled from Istanbul to China, following Marco Polo's Silk Road. Because traveling by camel caravan seemed a little too out there.