Some amusement park rides are so extraordinary it's difficult to appreciate their incredible size and speed. In Amazing Amusement Park Rides, kids will get lots of help in understanding the big numbers behind some of the world's most awesome structures. For example, the Steel Dragon in Japan is the longest roller coaster in the world, covering 8,133 feet (2,479 m) of track. That's just a number, but when you know that if the roller coaster were laid...