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In page Vatadage:

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Vatadages often had four entrances, usually oriented to the four cardinal directions.[4] However, not all of them have been built according to this tradition, and vatadages such as the Thuparama have only one entrance.[5] These entrances were elaborately decorated. The steps that lead to the raised platform were adorned with carvings, as were the korawak galas (stone balustrades). A sandakada pahana (moonstone) was placed at the foot of the steps, flanked by two muragalas (guard stones).[6]