The Poulnabrone Dolmen (English: the hole of worries) is one of the most famous megalithic complexes in Ireland and was built in the Neolithic period, probably between 3800 and 3200 BC. It is therefore over 5000 years old. During the time of the Celts around 600 - 500 BC. it was used as a druid altar.

The dolmen is a portal tomb. Located in the Burren, County Clare, Ireland, the dolmen is composed of two orthostats supporting a capstone approximately 12 feet long. Originally it was covered by a cairn.

It is visited by many tourists, so photos without people are only possible with a lot of patience or at unusual times of the day. Rainy weather is advantageous.