Hanging Gardens of Babylon
The Hanging Gardens of Babylon, one of the Seven Wonders of the Ancient World, are believed to have been built under the rule of Nebuchadnezzar II (604-562 BC). There is very little information concerning their existence that has survived and archaeologists continue to attempt to piece together its exact location and design.
A recent theory is that the gardens described by the ancient texts were actually built by the Assyrian king Sennacherib in Nineveh. Archaeologists have found an extensive system of underground aqueducts with inscriptions attributing them to Sennacherib and describing their operation, which resembles the descriptions given by the ancient texts, such as the use of a water screw.