Valve Pit (Biso Kotuwa) of Deepa Uyana in Polonnaruwa

Biso Kotuwa of Deepa Uyana in Polonnaruwa (දීප උයනේ බිසෝකොටු සොරොව්ව)

Immediately behind the Polonnaruwa Rest House, now known as ETKO Lake House, lies a remarkable brick Biso Kotuwa (valve pit) once connected to the Parakrama Samudraya. Constructed during the reign of King Parakramabahu I (1153–1186 CE), this structure regulated the water flow supplied to the Deepa Uyana, the royal park.

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Conserved ancient stupa of Padalangala Weheragodella Rajamaha Viharaya

Padalangala Weheragodella Rajamaha Viharaya (පදලංගල වෙහෙරගොඩැල්ල රජමහා විහාරය)

Hidden within the ancient Ruhuna Kingdom, the Padalangala Weheragodella Rajamaha Viharaya reveals the remnants of a long-lost stupa buried beneath time. Excavations in 2016 uncovered its sacred relic chamber, intricate brickwork, and traces of ancient Buddhist craftsmanship that echo early spiritual heritage of Rohana Kingdom.

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Puwarasankulama Chethiyagiri Rajamaha Viharaya

Puwarasankulama Chethiyagiri Rajamaha Viharaya (පුවරසන්කුලම චේතියගිරි රජමහා විහාරය)

Hidden by paddy fields near Anuradhapura, Chethiyagiri Rajamaha Viharaya reveals a silent world of ancient stonework and sacred art. Its weathered stupas, inscriptions, and rare footprint stones whisper stories from the 1st century CE—echoes of a monastery that once flourished on Sri Lanka’s timeless plains.

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Sankamale Rajamaha Viharaya in Kuchchaveli

Sankamale Rajamaha Viharaya in Kuchchaveli (කුච්චවේලි සංඛමලේ රජමහා විහාරය)

Hidden on a hill overlooking the Kokkilai Lagoon, Sankamale’s ancient Buddhist monastery bears silent witness to centuries of devotion—and decades of neglect. Once part of a vast Polonnaruwa-era sacred complex, its ruins now struggle for survival amid encroaching settlements and the quiet erasure of Sri Lanka’s forgotten heritage.

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Vattavan Archaeology Site in Verugal

Vattavan Archaeology Site in Verugal (වෙරුගල් වට්ට­වාන් පුරාවිද්‍යා නටබුන්)

Hidden amid paddy fields near Verugal Aru, the ancient Vattavana rock shelters reveal 3rd-century BCE cave inscriptions carved into a 700-metre granite ridge. Recently uncovered by archaeologists, this fragile site faces modern threats—its secrets of Sri Lanka’s earliest monastic life at risk of vanishing forever.

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