The lost city of Atlantis

The lost city of Atlantis is a mythical and fabled civilization, according to ancient Greek philosopher Plato. Described as an advanced and prosperous city, Atlantis was believed to be an utopian society with magnificent architecture, advanced technology, and a highly organized government. It was said to be located beyond the "Pillars of Hercules" and sank into the sea due to its people's corruption and moral decay. Despite extensive searches, Atlantis has never been found, adding to its mysterious allure.