Painting of a river with boats and buildings in the background

(best quality,4k,highres),ancient civilization,huge bustling city,five thousand years old,thriving metropolis,advanced architectural marvels,ornate temples and palaces,towering statues,population: millions,elaborate irrigation systems,monumental city walls,vibrant markets and trading hubs,people of diverse cultures and occupations,merchant caravans arriving from distant lands,grand processions and festivals,entertainment and performance venues,majestic river flowing through the city,lush gardens and parks,emerging advancements in science and technology,cosmopolitan atmosphere,breathtaking sunsets and sunrises,golden era of human civilization.