A UNESCO World Heritage Site, the Sigiriya Rock Fortress, also known as the Lions Rock Fortress, was built in the 5th century by the infamous King Kashyapa. The paranoid king, who feared reprisals from his brother, built his fortress up a gargantuan rock in the middle of the forest. The stronghold lacked nothing when it came to comforts and was the king's personal harem. You can visit the place today to witness the amazing feats of architecture that makes Sigiriya the treasure it is today. Well planned irrigation structures and lakes and gardens built at the summit of the rock are testaments to the ancient engineering feats of Sri Lanka's forefathers. The rock paintings and mirror wall are among cherished attractions inside the fort while the huge entrance flanked by two giant lions' paws is certainly impressive.