These four huge, exquisite figures of Buddha near the beautiful ancient city of Polonnaruwa were cut from a single granite cliff. They include a standing figure more than three times life-size and, twice bigger still, a Buddha in the reclining “lion posture” (simhasana) in which he attained his final nirvana.
The two other Buddhas are seated. The figures, which remain unsurpassed in Sinhalese art, were commissioned by the rich and devout 12th-century King Parakramabahu, but nobody knows who it was that carved them.
The Gal Vihara, and originally as the Uttararama, is a rock temple of the Buddha situated in the ancient city of Polonnaruwa in North Central Province, Sri Lanka. It was fashioned in the 12th century by Parakramabahu I. Wikipedia