Prehistoric art and arrowheads
Though its wedge-shaped 12ft/3.7m by 5ft/1.5m capstone is now partially held up by brick supports, Tŷ Newydd still cuts an impressive sight. The tomb was once covered by a round cairn, now marked out by the small bollards that surround it.
The chamber’s layout suggests that it was built during the Neolithic (New Stone Age). Excavations in 1936 uncovered remains of pottery and an arrowhead from the later Beaker and Bronze Age periods of history. More recently, prehistoric artwork termed ‘cup marks’ have been detected on the capstone. All of this evidence suggests that Tŷ Newydd had a long working life.