UNESCO World Heritage Sites in Sri Lanka Natural World Heritage Sites Sinharaja Forest Reserve 1988 A highly biodiverse tropical rainforest and an important habitat for endemic plants and wildlife. Central Highlands of Sri Lanka 2010 A natural heritage property covering important highland ecosystems, including Peak Wilderness, Horton Plains and Knuckles Conservation Forests . Cultural World Heritage Sites — 6 Sacred City of Anuradhapura 1982 One of Sri Lanka's ancient capitals and a major centre of Buddhist heritage. Ancient City of Polonnaruwa 1982 The medieval capital of Sri Lanka, known for its ancient monuments, reservoirs and Buddhist sculpture. Ancient City of Sigiriya 1982 The famous ancient rock fortress and palace complex, including the celebrated frescoes and landscaped gardens. Sacred City of Kandy 1988 The historic hill capital and h...