The legendary city that was said to be located beyond the pillars of Hercules is known as Atlantis. This fabled island appears in the works of the philosopher Plato, who described it as a powerful and advanced civilization that eventually sank into the ocean due to its hubris. Atlantis has captured the imagination of many cultures and has become a symbol of lost knowledge and utopian society. The search for Atlantis has inspired countless theories and explorations throughout history, making it one of the most enduring legends in mythology and exploring the fate of civilizations.