Ballykeel Dolmen

Ballykeel Dolmen is an ancient megalithic structure located in Northern Ireland, specifically in County Down, near the town of Banbridge. It is believed to have been constructed during the Neolithic period, around 4000-2500 BCE, and is one of the most impressive examples of a portal tomb in Ireland.

The dolmen consists of a large capstone, estimated to weigh over 35 tons, resting on top of two massive upright stones, which are themselves supported by several smaller stones. The structure forms a chambered tomb, which was used for burials during the Neolithic era.

The site was first excavated in the 1960s, revealing the remains of several individuals and artifacts such as pottery and flint tools. The site is believed to have been used for a period of several centuries, with evidence of multiple burials over time.