Characters:
* Harry Potter (from the "Harry Potter" series)
* Sherlock Holmes (from the Sherlock Holmes stories)
* Darth Vader (from the "Star Wars" universe)
* Hermione Granger (from the "Harry Potter" series)
* Katniss Everdeen (from the "Hunger Games" trilogy)
* Frodo Baggins (from "The Lord of the Rings" trilogy)
Places:
* Hogwarts School of Witchcraft and Wizardry (from the "Harry Potter" series)
* Middle-earth (from "The Lord of the Rings" trilogy)
* Narnia (from "The Chronicles of Narnia" series)
* Gotham City (from the Batman comics and films)
* Westeros (from "Game of Thrones")
* The Shire (from "The Lord of the Rings" trilogy)
Objects:
* The One Ring (from "The Lord of the Rings" trilogy)
* The Sword of Gryffindor (from the "Harry Potter" series)
* The Millennium Falcon (from the "Star Wars" universe)
* The Time Turner (from the "Harry Potter" series)
* The Philosopher's Stone (from the "Harry Potter" series)
* The TARDIS (from "Doctor Who")
Concepts:
* Magic (from many fantasy stories)
* Time travel (from various science fiction stories)
* Superpowers (from superhero comics and films)
* Alternate universes (from science fiction stories)
* The Force (from the "Star Wars" universe)
* Zombies (from horror stories)
Events:
* The Battle of Hogwarts (from the "Harry Potter" series)
* The Quest for the Holy Grail (from Arthurian legend)
* The Hunger Games (from the "Hunger Games" trilogy)
* The War of the Ring (from "The Lord of the Rings" trilogy)
* The Invasion of Earth (from various science fiction stories)
* The Rise of the Machines (from various science fiction stories)
Note: These are just a few examples. Fiction encompasses a vast range of possibilities, and the list is practically endless!