While Babylon itself is mainly a ruin, it’s located just a few miles from the modern city of Hilla (or al-Hillah) which has a population of about 500,000 people. Now That’s Confusing Many historians now believe that the fabled Hanging Gardens of Babylon may actually have been built 300 miles (482 kilometers) away in Nineveh by King Sennacherib of the Assyrian Empire, rather than Nebuchadnezzar .
https://history.howstuffworks.com/history-vs-myth/babylon.htm

