The Rosetta Stone actually rests at an angle, held there by a heavy custom made welded pipe frame. Even the frame is interesting to contemplate. {ggg}.
Equally important to the interpreting of Archeological finds is the
Behistun Rock
The boasting of King Darius was not as important as his doing it in multiple languages. Combining the multiple languages on the Rosetta Stone and the Behistun Rock made possible the breaking of the Cuneiform "picture writing" code.
This new knowledge made possible translation of the 23,000+ Assyrian Tablets, also at the British Museum. These tablets contain valuable history about what happened to the Lost Tribes of Israel who were in Assyria at that time. It was not until these archeological discoveries were made that the Lost Tribes could be found. It's all part of the plan...