Arnold Schwarzenegger’s Son Christopher Hits Gym, Shows Incredible Weight Loss

Arnold Schwarzenegger's son, Christopher, is in the middle of an impressive transformation ... looking super fit as he steps for a workout. 25-year-old Christopher hit up a gym Tuesday in L.A., and while it wasn't his dad's iconic spot -- Gold's Gym in Venice -- it's clear he's been putting in the kinda fitness work for which his dad became famous.