SPOILERS AHEAD for Game of Thrones, Season 8, Episode 5, “The Bells.”
In Game of Thrones’ penultimate episode, Daenerys and Drogon set fire to King’s Landing and, in doing so, made true part of Bran’s vision from an earlier season.
In season 4, episode 2, “The Lion and the Rose,” Bran touches a Weirwood tree beyond the Wall and is instructed by the previous three-eyed raven to meet him north, all while seeing visions which include him falling from the tower in Winterfell, his father Ned, and a shadow of a dragon flying over King’s Landing.
Source: IGN.com Game of Thrones: How Bran's Vision Came True (and What Is Yet to Come)