Created 2,400 years ago. This sculpture shows the mythical Hero during his twelve labors. The sculpture shows absolutely realistic in its proportion and muscle shapes. This was made in a time when little knowledge was known about the actual muscle shapes, especially not what they would have looked like if they were so large. The sculpture also shows minute details such as the veins running up the stomach and the defined obliques as well as the true to life biceps and chest.
The artist couldn't have worked with corpses to get the muscle shapes since they are quite differently shaped when they are much smaller, and the specific stance shows how the muscles in fact look in such a stance. The details such as the veins, also true to life, suggest that an actual model was used when carving this sculpture.
The question: What individual could ever have been this large over 2 thousand years ago? Without any chemical enhancements? Without modern nutrition or exercise equipment?
My guess is that the model for this statue was in fact someone who had an abnormal Myostatin gene, allowing them to have such extreme musculature without actually using anabolic Steroids.