One of the world’s oldest roller coasters will celebrate a landmark anniversary in style–with the help of its biggest fan. Kennywood Park’s Jack Rabbit, a wooden coaster built in 1920 by legendary designer John Miller, marks 95 years of thrilling riders this season. To celebrate the birthday of the fifth-oldest roller coaster in the world, Kennywood fanatic Vic Kleman will embark on 95 consecutive rides of the Jack Rabbit on Sunday, May 24.