31. Take Me Home, Country Roads
America: home to the brave, the free, and apparently, the ancient rivers. Three of the five eldest rivers on Earth decided to flow in the land of liberty. These watery seniors have seen more history than any textbook could hold, and they just keep rolling along.

While the nation itself is a youngster on the global stage, its rivers are the wise old sages, carrying secrets and stories in every ripple and wave. These flowing patriarchs of the U.S remind us that some of the best parts of America have been around since, well, before it was America.