Newgrange Entrance Stone

Entrance to Newgrange, a passage grave in the Boyne Valley, Ireland. The oldest known architectural monument to be solar orientated c3300BC. See “Midwinter’s Sunrise at Newgrange”, NATURE, 1974, Vol. 249, pp.517- 519 for more details.

Entrance to Newgrange, a passage grave in the Boyne Valley, Ireland. The oldest known architectural monument to be solar orientated c3300BC. See “Midwinter’s Sunrise at Newgrange”, NATURE, 1974, Vol. 249, pp.517- 519 for more details.

Entrance to Newgrange, a passage grave in the Boyne Valley, Ireland. The oldest known architectural monument to be solar orientated c3300BC. See “Midwinter’s Sunrise at Newgrange”, NATURE, 1974, Vol. 249, pp.517- 519 for more details.

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