Ralph Macchio in 1984’s “Karate Kid.” Li and Connor’s climatic fight takes place on top of a fake New York City skyscraper — filmed on a soundstage.

NYC skyscraper undergoes dramatic redesign to reach new heights. The Avenir's 45-story tower will rise out of a chunky nine-story base. Silverstein Properties. View 3 Images 1 / 3.

Ben Wang on top of an NYC skyscraper for the final climactic fight in “Karate Kid: Legends.” Columbia Pictures. Director Jonathan Entwistle talking to The Post for “Karate Kid: Legends.” ...