Sigiriya, the "Lion Rock," is Sri Lanka's most spectacular ancient site and a UNESCO World Heritage monument — a 200-metre volcanic plug rising from the plain north of Kandy, topped by the ruins of a fifth-century palace. The climb involves ladders, metal staircases, and a final scramble up the rock face past remarkable frescoes (the only survivor of a gallery of paintings that once stretched for 140 metres along the cliff face) to the summit plateau, where the palace foundations survive alongside a complex of water gardens and terraced landscaping.
From Kandy, Sigiriya is about 97 km north — a long day trip or better combined with a night at Dambulla or Habarana. Most visitors hire a car and driver for the day; the drive takes around two hours each way. Book the site entry online in advance as it has a fixed visitor cap in peak season.