coolnumbr12 writes with this excerpt from IBTimes: "Japan's magnetic-levitation train is still more than decade away from completion, but the L-Zero recently proved that it really is the world's fastest train. On a 15-mile stretch of test track, the L-Zero reached speeds of 310 miles per hour. After the successful trials, Central Japan Railway Co. is going ahead with a 5.1 trillion yen ($52 billion) plan to build a 177-mile maglev line between Tokyo and Nagoya. CJR says the trip will take just 40 minutes on the L-Zero." There are other fast trains in the world, but the L-Zero edges out the others on this list.