Compare Ireland's Newgrange passage tomb with England's Stonehenge. Both encode solstice alignments and predate the pyramids — which is more astronomica...
Side-by-side comparisons of the world's most fascinating ancient archaeological sites. Each comparison examines age, construction techniques, astronomical alignments, engineering achievements, and the theories surrounding both sites. Discover unexpected connections between civilizations separated by thousands of miles and years, and explore why independent cultures built remarkably similar monuments. Our comparison pages feature structured data referencing both sites and include links to detailed individual site profiles for deeper exploration.
Newgrange and Stonehenge are the British Isles' two most famous prehistoric monuments, both encoding astronomical alignments that continue to function perfectly after five millennia. Newgrange (c. 3200 BC) in Ireland's Boyne Valley is a passage tomb with a precisely angled roof box that channels the winter solstice sunrise down a 19-meter passage to illuminate the inner chamber for exactly 17 minutes. Stonehenge (c. 3000-2000 BC) aligns its central axis with the summer solstice sunrise and winter solstice sunset. Newgrange is approximately 500 years older than Stonehenge's stone phase, suggesting Ireland may have influenced Britain's megalithic tradition. Both demonstrate sophisticated understanding of the solar year — Newgrange's roof box alignment requires knowledge of the sun's precise declination angle at winter solstice, accounting for the local horizon. Architecturally, they differ markedly: Newgrange is a massive mound covering 4,500 square meters with a white quartz facade and internal corbelled chamber that has remained waterproof for 5,200 years. Stonehenge is an open-air monument whose construction evolved over 1,500 years through multiple phases, each adding astronomical sophistication.
Explore both sites in detail on Ancient Origins Explorer to compare evidence, theories, and archaeological analysis side by side.