The Belly Button of Buddha
The Milk Bucket of Freydis
The Star of Sultan Saladin
The Very Tall Turban of Ahmed Baba
All 4 of them are solo wins... never realised that.
The Enormous Feather of the Me Linh was the only time that an item in the top of the temple (i know not techically the Observatory, but same space) was grabbed and not brought out of the temple, and that was a team run as well.
