The cruciform corridor tomb is a complex variant of a corridor tomb found in Ireland, West Wales and Orkney Islands. They were built towards the end of the Neolithic, from about 3500 BC. They are distinguished by a long corridor, which leads to a central chamber with corbelled ceiling. From this hall extend in three directions sepulchral rooms, giving a view from above of the form of a cross. Some rooms have sub-rooms from the original three rooms.
All rooms are capped with a cairn and covered with a dry stone facing, called peristalite. A common feature is the engraving of the stone walls and roof of the rooms. Abstract patterns are the most numerous, especially spirals and zigzags. Known examples are Newgrange in Ireland, Maeshowe in Orkney and Anglesey.