One proposal is that the Hanging Gardens of Babylon were actually constructed by the Assyrian king Sennacherib (reigned 704 – 681 BC) for his palace at Nineveh.
Stephanie Dalley posits that during the intervening centuries the two sites became confused, and the extensive gardens at Sennacherib's palace were attributed to Nebuchadnezzar II's Babylon.
The garden was tiered, with the uppermost gallery being 50 cubits high. The bases of the tiered sections were sufficiently deep to provide root growth for the largest trees, and the gardens were irrigated from the nearby Euphrates.
He states that the gardens were located on top of a citadel, which was 20 stadia in circumference.
A sculptured wall panel of Assurbanipal shows the garden in its maturity.
One original panel Of Sennacherib's palace, he mentions the massive limestone blocks that reinforce the flood defences.
Its name is derived from the Greek word kremastós (κρεμαστός, lit.
"overhanging"), which has a broader meaning than the modern English word "hanging" and refers to trees being planted on a raised structure such as a terrace.
There are five principal writers whose descriptions of Babylon exist in some form today.
These writers concern themselves with the size of the Hanging Gardens, their overall design and means of irrigation, and why they were built.