The territory of Poseidon was the last bastion of Olympus.
Once sitting high on their thrones with powers that engulfed the entire Mediterranean region, the ancient Greek gods, who ruled generations of dynasties and thousands of city-states, finally ushered in their doomsday. They used to be proud and confident, looking down on the weak and short-lived empire of humankind. They ridiculed the brief life expectancy of the indigenous beings who could only live about forty years. The Olympian beings, with their inherent strength, felt entitled to be called gods. They believed that their rule would last forever. But today, these gods finally realized one thing: they were far from being eternal. They were only a little stronger than humans, and their dynasty could only last a few thousand years longer than that of the mortal world.
Their experience of living high up on the clouds and receiving worship from the mortals was only a flash in the pan.