The hanging gardens of Babylon

It is said to have been built by the Babylonian king Nebuchadnezzar in 605 BC. It is a multi-storey garden in the middle of the barren Mesopotamian desert, which is estimated to have artificial mountains, various trees, plants and running water. It is stated to be 80 kilometers in length, 25 meters in width and 97 meters in height. Although there are different claims as to why it was built, the strongest one is that the King had it built to give a gift to his wife, Semiramis, who was overwhelmed by the sweltering heat of the Mesopotamian desert.