Ever since the origin of roller coasters, mankind has been pushing the envelope to see how fast and hard a person can safely be hurtled down a track. The further you venture from a soft, comfortable ride, the more fun you’re likely to experience (if you’re a legitimate thrillseeker). Times have changed, needless to say, and the early days of ice slides and wooden coasters have been replaced with 100+ mph monsters, G forces, 400-foot drops, and hydraulic/steam power. We figured we’d make it easy for you, just in case you were thinking to chase down some of the beasts this summer.