Poulnabrone Dolmen is a neolithic portal tomb in the Burren, Ireland. The remains of 6 children and up to 22 adults were found buried beneath the tomb.
This picture was taken between waves of tourists. And they did come in waves – a bus would arrive, they would pour out, circle round the tomb, and then recede back into the bus. 5 minutes later, the next bus would arrive, but for the few minutes in between, we had the place to ourselves.