As a fan of online literature, I can tell you some classic TV series endings, some of which may make you feel unforgettable and brooding. The ending of Game of Thrones: All the main characters die in the last episode, leaving only a lonely child dancing in the fire. This scene is very shocking and sad. 2 Titanic's Ending: Although the protagonists managed to escape, their decisions and actions before the ship sank led to different tragic endings. 3. The ending of The Shawshank Redemption: The protagonist, Andy, spent 20 years in prison, but he finally succeeded in gaining freedom and helping other prisoners fight for justice. 4. The ending of Harry Potter and the Philosopher's Stone: The main character, Harry, finally gets the Philosopher's Stone but suffers betrayal and harm in the process. 5. Ending of Green Book: Tony, the protagonist, works part-time for Pi Shu, the black driver, in a restaurant. Eventually, the two become good friends. But at the end of the movie, Tony was fired because of an argument with Pi Shu. The ending was very unexpected. These endings have their own unique charm and sadness that may make you feel unforgettable and brooding.