Work of the Giants?

Mallorca is littered with "talaiots" and "navetas". These structures of a prehistoric megalithic culture are dated to be between 3,000 and 5,000 years old. Their origin is still a mystery today. No one knows exactly who the people were who built them and what purpose they served. By the time the Carthaginians, and later the Romans, came to the Balearic Islands, the Talaiot builders had long since disappeared. And although their buildings were still in use as dwellings, no one knew anything about their origins. So local legends were formed that the buildings made of the gigantic stones were the work of giants.