The Hulk isn't called the strongest superhero for no reason. For decades, the Marvel icon has taken gym days to a whole new level as his feats of strength have defied all expectations. From high-stakes battles to urban rescue missions, the Hulk has put his supernatural strength to good use over the years. Of course, his impressive physique has many fans wondering what is the heaviest thing the Hulk has ever lifted canonically, and Marvel just gave the world a clear answer on the topic.