Sigiriya also known as the Lion's Rock is a rock fortress and a palace located in the Matale district of Sri Lanka. This ruin is surrounded by gardens, ponds and other structures. Sigiriya was built by King Kassapa and it is included as a World Heritage site. Sigiriya is the best preserved city centre in Asia. Sigiriya was ruins of an ancient stronghold that was built in the late 5th century CE on a remarkable monolithic rock pillar. The rock, which is so steep that its top overhangs the sides, rises to an elevation of 1,144 feet (349 metres) above sea level and is some 600 feet (180 metres) above the surrounding plain.

Earlier is was a rock-shelter mountain monastery which was donated by Buddhist devotees. Later King Kassapa renovated it by building gardens and palace. After his death it was again used as a monastery. Human habilitation in Sigiriya at its earliest was found to be nearly five thousand years during the Mesothilic period.