Six Flags retired the coaster, which opened in 2005, to make room for new rides, the company said late last year. Kingda Ka, both the tallest and fastest coaster in the world when

Kingda Ka, the world’s tallest and second-fastest roller coaster, is expected to go out with a bang — or rather several of them — on Friday morning, according to authorities. A community alert from the Ocean County Prosecutor’s Office warned the demolition at Six Flags Great Adventure will take place between 9 a.