The crowning glory of Sigiriya was the Sky Palace located on the summit of the massive 200 meter high Sigiriya Rock. It was the geometrical center of the city built by King Kasyapa (ruled 477 — 495 AD) in what was then virgin forest. In its heyday 1600 years ago, it was indeed a breathtaking sight. Visible for miles around, the Sky Palace appeared to float above the treetops as though on a gleaming white cloud. This was innermost sanctum of Kasyapa's fortress. It is where, according to the ancient chronicles, he lived like the god "Kuvera in Alakamanda", the mythical city of the gods.
The Sky Palace served two purposes. Firstly it was a grandiose statement of the power and wealth of Kasyapa its builder. Secondly, it was a royal residence. Only the king, queen, and a small retinue of staff lived there.
This palace was mainly used during the hot dry season. Given its high elevation of nearly 360 meters above sea-level, it would have been a cool and comforting place. During the wet monsoon season, with torrential rains and high winds, the lower palaces were most likely used.