Roller coasters are the central attraction of most amusement parks and it’s easy to see why. They’re a marvel of architectural engineering, offering speeds and thrills that just aren’t possible on other types of attractions. They’re designed to simulate danger and are generally very safe, but that still doesn’t make some of them any less terrifying. Engineers around the world have dreamed up all sorts of wild, seemingly-impossible coaster designs over the years. Rider beware — these 15 scary roller coasters will test even the most hardened thrill-seeker’s mettle.
Most coasters only go in one direction, but the Invertigo of King’s Island in Cincinnati, Ohio (Ohio really seems to love roller coasters) lives up to its name by taking riders on a series of topsy-turvy loops and inversions — in both directions. Invertigo doesn’t have the height or speed of many of its coaster brethren, but it makes up for this deficiency with sheer vomit-inducing vertigo.