Hanging Gardens of Babylon

The Hanging Gardens of Babylon were an ancient tiered garden in Babylon, which was one of the Hellenic Seven Wonders of the Ancient World.

Background
The gardener exam at the Pioneer Scout camp has a question that directly references the structure. It asks "Mary wants to grow a spectacular garden, with all the best plants she can find. She wants to model her garden off of a legendary Wonder of the World. Which garden should she use as her model?" The Hanging Gardens of Babylon is the correct answer to the question.

Appearances
The Hanging Gardens of Babylon are mentioned only in the Fallout 76 update Wild Appalachia.