Roller coasters rock. At least, if you enjoy the sheer terror of plunging hundreds of feet toward earth at speeds well beyond the legal road limit, inducing that special feeling you get when your stomach slaps your uvula. And, chances are, you do; which is why amusement parks such as Six Flags and Cedar Point have prospered. Amusement parks the world over continually compete to introduce the tallest, fastest, biggest, baddest roller coasters. The experience of the coasters are terrifyingly wonderful, but it’s also important to note that today’s mega-coasters also serve as marketing tools for the parks at-large. Accordingly, most of today’s coaster marvels have their own logos that are featured on marketing materials and, of course, the coasters themselves. Here are 30 logos from some of the world’s top roller coasters (plus one kiddie coaster for good measure).