Lankathilaka Vihara is a vaulted type (gedige) image house located in Polonnaruwa District of North Central Province, Sri Lanka. It was built by King Parakramabahu the Great (1153-1186 A.D.). This image house is considered to be the largest image house built in ancient Sri Lanka. There is evidence that the image house has been renovated during the Dambadeniya Period (13th century A.D.).
The giant standing Buddha statue, two pylons at the entrance and the remaining walls signify the extent of it. The building, including the giant Buddha statue, is completely built with clay bricks. According to some chronicles, the building has had five stories and starting sections of the stairs still remain for today, The exterior and interior of this image house had been decorated with paintings. The entrance to the building is decorated with a Moonstone and two Guard Stones. The stucco relief sculpture on the exterior walls has South Indian influence.
Building with stone pillars in front of the image house may have been a pavilion for his drummers.