The Lia Fail: Royal Symbol of Tara

This is Stone of Destiny.  (Yes, we did giggle because apparently, Jeff and I are both really 12 years old...) 

It was originally closer to the Mound of the Hostages, but it was moved to this spot to mark the graves of 400 rebels who died in the battle of Tara in the United Irishmen revolution of 1798. 

According to the pamphlet, there is some discrepancy as to whether this is the true Lia Fail, but it is largely accepted as such.