Our lives are not measured by the lengths we live them to, but by certain moments which define our lives. On most occasions, a surge of adrenaline, or a thrilling rush will be what will define that very moment for you and make itself unerasable from your memory. And what’s a better way to achieve that than to do so in an amusement park’s roller coaster? We bring you the world’s most thrilling rides for your ultimate adrenaline-induced pleasure.

X2 Six Flags Magic Mountain in Los Angeles

The iconic Six Flags Magic Mountain ride recently underwent a huge renovation and the end result is X2, an all-out “4D” ride. 4D because the seats rotate and revolve by themselves, as well as slide out of their racks.

Kingda Ka at Six Flags Great Adventure in Jackson, New Jersey

Kingda Ka does not hold any competition. It is the world’s tallest roller coaster and the world’s second fastest. The train is launched by special hydraulic launchers and the topmost point is the 456 feet drop. The ride accelerates to 20 km/hr in 3.5 seconds. Do the math. (Hint: it’s not for pussies)