Your first roller coaster ride is hard to forget. Whether you were forced into it by your older siblings, doing it to impress your crush, or waiting for the front row because nothing beats the rush of being at a 90-degree angle, that mix of sweaty anticipation and terror commingling with hot air and fried food sticks with you forever.

From Coney Island’s rickety, “Could this be the last time anyone rides this?” wooden Cyclone to Abu Dhabi’s Formula Rossa, the world’s fastest roller coaster at 149 miles per hour, these rides create a uniquely man-made, adrenalin-junkie rush. Here are a few of the scariest, grossest, and most liberating roller coaster experiences we could find. Strap yourself in because things could get bumpy.