The fastest roller coaster in the world is the Formula Rossa at Ferrari World in Abu Dhabi. Next time you're in the United Arab Emirates, you can hop on the Formula One-themed ride, which accelerates passengers from zero to 150 mph (240 kph) in less than five seconds [source: Ferrari World].
But serious speed and power aren't restricted to luxury car-themed amusement parks in oil-rich Arabian countries. Odds are your local coaster park has rides that propel extremely heavy cars at highway speeds with no emergency brakes in site.
Sadly, a surprising number of people lose body parts — and even die — at amusement parks every year. A South Carolina teenager was decapitated back in 2008 when he and a friend climbed over two security gates to retrieve a lost hat underneath the tracks of the Batman ride at Six Flags Over Georgia. A year earlier, a teenage girl's legs were severed when a snapped cable tangled around her ankles at another Six Flags in Kentucky [source: AP].
With millions of people visiting amusement parks each year, the likelihood of getting injured on a roller coaster is very low (the risk of theme park injuries in general is about 1 in 25 million according to the Consumer Product Safety Commission). Still, make sure to follow all posted instructions and notify a park employee if anything looks or feels amiss.