The Hanging Gardens are one of the Seven Wonders of the Ancient World, believed to have been built in the ancient city of Babylon, near present-day Baghdad, Iraq. They are described as a remarkable series of tiered gardens filled with a variety of trees, shrubs, and vines, designed to resemble a green mountain. However, their existence and exact location remain subjects of debate among historians. According to ancient texts, the gardens were constructed by King Nebuchadnezzar II for his wife, Amytis, who longed for the green hills and valleys of her homeland. The gardens were said to be irrigated by an advanced system, possibly using a chain pump or screw pump to lift water from the nearby Euphrates River. Despite their fame, no definitive archaeological evidence has been found to confirm their existence.