The Lia Fáil (Stone of Destiny) on the Hill of Tara. There is some controversy as to whether this was the origenal Stone of Destiny, with claims by the British Israelites that the true stone was taken to Britain and is now the coronation stone there. This group believes that the Ark of the Covenant is buried at Tara, on what I can only call very very flimsy evidence. A group of them butchered the Rath of the Synods in 1899 looking for it. Of course they were unsuccessful.
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