Leap-The-Dips - View this location on map Leap-the-Dips is the last known example of a Side-Friction Figure Eight roller coaster. Side Friction Figure Eight roller coasters were once common in amusement parks across North America as well as in parks in other parts of the world. The Side Friction Figure Eight type of coaster represented an important stage in the technological evolution of the roller coaster. 700 Park Avenue, Altoona, Pennsylvania Historical, Kids

---