Cro-Magnon males averaged 6’4”–6’6” after correcting literature underestimates. Tools like Ehenside Tarn axe demanded 30–50% more strength than modern axes. Meare Heath bow required over 100 lbs draw-weight, exceeding medieval longbows. Monuments use anthropometric units matching 6’6” strides and 12-inch feet. Stature shrank with farming arrival. Diet of large game and selection favored tallest strongest survivors. Cro-Magnons built canals and reed-boat catamarans for multi-tonne stone transport. Academic texts understate height to fit primitive farmer narratives. Even frail Cro-Magnon skeletons neared six feet with heavy bones. Weapons and tools prove population-wide giant strength and grip. Monuments like Stonehenge feasible only for such giants. Cro-Magnons embodied unmatched functional strength unlike modern strongmen outliers.