Superheroes are fictional characters who possess extraordinary abilities or powers, often used to protect the public and fight against evil. They typically appear in comic books, movies, and television shows, and are known for their iconic costumes and symbols. Popular superheroes include Superman, Spider-Man, and Wonder Woman, each with unique skills and backstories. These characters often face villains, who are their main adversaries, and engage in battles to save cities or the world. Superheroes also embody themes of justice, courage, and responsibility, inspiring audiences to stand up for what is right. Their stories often explore moral dilemmas and the consequences of power.