Massive Egyptian Stone Statues - The Colossi of Memnon - Lost Ancient Civilizations
The Colossi of Memnon each way 720 Tons, and were carved from one piece of Quartzite stone (1000 Tons estimated prior to being cut and carved). Even more interesting, is that they originate from a stone quarry in modern day Cairo, Egypt - 420 miles (675 km) away.
Be sure to check out Brien Foerster's YouTube channel as he has firsthand video examination of these statues: / @brienfoerster