Marvel Heroes are fictional characters that appear in comic books published by Marvel Comics. They often possess superhuman abilities and engage in battles against villains to protect the world. Some of the most popular heroes include Spider-Man, Iron Man, and Captain America. These characters are part of a larger universe that includes various storylines, teams, and crossovers. Many Marvel Heroes are members of groups like the Avengers or the X-Men, working together to face threats. The Marvel Universe has expanded into movies, television shows, and video games, making these heroes widely recognized around the globe.