A cetiya in Rohana in South Ceylon, not far from Cittalapabbata Vihára, so named because it is situated on the summit of a rock. It is not known when and by whom it was built. King Kákavanna-Tissa fixed to it stone slabs, to make it easier of ascent (Mhv.xxii.26).
There were probably two cetiyas of the same name, one being in Rohana and the other to the east of Anurádhapura. It is the latter which is mentioned in the thirty-third chapter of the Mahávamsa (Vers. 68-9).
Vattagámani, going up with his queen to the Ákásacetiya, saw his minister, Kapisísa, who had just come down from the cetiya, where he had been sweeping the courtyard, sitting by the road; because he did not fling himself down before the king, the latter slew him in anger.
This Ákásacetiya was near Acchagalla Vihára, which, according to the Mahávamsa Tíká (MT.302), was to the east of Anurádhapura.
It may be that Ákásacetiya was a common name for any vihára built on the summit of a rock, for the Commentaries (AA.i.375; MA.ii.955) speak also of an Ákásacetiya at Sumanagiri (Sumanakúta) at which the Tamil general Díghajantu offered a red silken robe.