Japan is a nation obsessed by trains. Every time you turn on the TV, there is a program about trains. Not necessarily high-speed trains, either. These programs cover trains around the world, celebrities traveling across Japan by train, or just trains choo-chooing peacefully through mountain scenery to classical music.

Trains are a big topic. Almost every country has them. Japan is home to some of the fastest trains in the world, India's railway system runs over 14,000 trains a day, Eurorailways travels through 23 countries (and includes the Orient Express), and the Trans-Siberian Railway covers nearly 10,000 km.

Then there's Amtrak. Amtrak is America's trans-continental railway that most people have never heard of and even fewer have taken. What about this mysterious railway? Could this be America's best-kept secret? I decided to find out.