A record-breaking roller coaster was demolished at a Six Flags park in New Jersey on Friday, marking the end of a thrilling chapter in amusement park history.The Kingda Ka roller coaster at Six Flags Great Adventure was destroyed by demolition crews early Friday morning, three months after officials announced the closure of the ride in November. Aerial footage of the scene shows the steel beams of the roller coaster collapsing, creating clouds of smoke near one of the park's parking lots. The ride opened in 2005.Zumanjaro: Drop of Doom, a drop tower attached to Kingda Ka, was also destroyed during the