Hanging Gardens of Babylon was one of the classic Seven Wonders of the World. It is thought to have been built in the ancient city of Babylon.
The gardens were built high above the ground on multi-level stone terraces and was therefore called hanging gardens. The plants were not rooted in the ground below like a traditional garden.
The most popular theory has it that the king Nebuchadnezzar II built these gardens to make his wife happy who was homesick for the plants and gardens of her homeland.
Historians and archaeologists believe that the gardens did exist and natural calamities and erosion destroyed them over time.