Maeshowe is the finest chambered tomb in north-west Europe and more than 5000 years old.
It was broken into in the mid-twelfth century by Viking crusaders who carved graffiti runes on the walls of the main chamber.
In 1999, Maeshowe was designated part of the Heart of Neolithic Orkney World Heritage Site, along with Skara Brae, Ring of Brodgar and the Stones of Stenness. The shop features many products made in Orkney.