As of February 2026, the oldest operating roller coaster in the world is Leap-the-Dips, located at Lakemont Park in Altoona, Pennsylvania. Built in 1902, it is currently 124 years old. It is the last surviving "side friction" roller coaster of the figure-eight variety in North America, designed by E. Joy Morris. Unlike modern steel coasters, Leap-the-Dips does not have "up-stop" wheels to lock the car to the track, meaning it relies on gravity and a slower pace to keep the cars grounded. It was designated a National Historic Landmark in 1996. Another notable centenarian is Scenic Railway at Luna Park in Melbourne, Australia, which opened in 1912 and remains the oldest continuously operating coaster, as Leap-the-Dips has faced several multi-year closures for restoration. These wooden legends offer a "herky-jerky," nostalgic ride that is cherished by historians and thrill-seekers alike.