An elaborate architectural element of Egyptian tombs and mortuary temples which was a dummy entrance where the true entrance would normal be. The false entrance was for show and it served as the focal point of a tomb and had a door carved or painted, presumably through which the ka could enter and leave at will when partaking of funerary offerings. These first appeared in tombs of the Old Kingdom (2686-2181 BC). The term also refers to a phenomenon found in megalithic tombs in the British Isles, where an apparent entrance to a chamber, often leading from a forecourt, is in fact a dummy and the real chambers open not from the end but the side of the mound.