This question comes to mind as I read my latest book acquisition, The Mystery of the Hanging Garden of Babylon: An Elusive World Wonder Traced, by Stephanie Dalley. Because she claims the Hanging Gardens of Babylon were not actually in Babylon. Nor anywhere near Babylon. Because the Hanging Gardens of Babylon were actually in ... Nineveh. Which makes sense, I suppose, since whenever anyone mentions the Assyrians, the first thing you think of is "gardening."
I'm still early in the book, so I'm not in any position to make a determination as to her evidence, but Dalley is a respected archaeologist and appears to have amassed considerable evidence. Aside from dropping a chicken wing on the book, so far I am enjoying it.